Glossary entry (derived from question below)
Portuguese term or phrase:
(dar uma) fechada
English translation:
pull over and block in / cut up and block in
Portuguese term
Brazil
32 years engineering/law/contracts
Native in: English (Variant: US) 
, Portuguese (Variant: Brazilian) 
Works in: English to Portuguese, Portuguese to English
(dar uma) fechada
O original está assim, mas o termo mais comum seria "dar uma fechada", forçando o motorista a jogar o carro para o lado para evitar uma colisão.
TIA
| 4 | pull over and block in |
Ana Vozone
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| 4 +1 | cut (sb) off |
Matheus Chaud
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| 4 | cut(s) in front of (someone) |
Paulinho Fonseca
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| 4 | cut him up and block him in |
Richard Purdom
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Jun 7, 2017 17:23: Mario Freitas Created KOG entry
Proposed translations
Will do!
Native in: Portuguese (Variant: European/Portugal)
Works in: English to Portuguese, French to Portuguese, German to Portuguese, and 1 more.
pull over and block in
https://www.google.pt/search?q=www google com&aq=0&oq=www.go...
The girl has told her family and the police that a dark green car pulled over and blocked her path.
We were pulled over and blocked in by two police cars for speeding which I denied.
Brazil
Translates IT, Apps Tutorials & Mining
Native in: Portuguese
Works in: English to Portuguese, Portuguese to English, Spanish to Portuguese, and 3 more.
cut(s) in front of (someone)
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Note added at 8 mins (2017-06-06 01:46:37 GMT)
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http://www.dailymail.co.uk/news/article-3719657/Why-taunting...
Brazil
IT Specialist • M.A. in Linguistics
Native in: Portuguese (Variant: Brazilian)
Works in: English to Portuguese, Spanish to Portuguese, Portuguese to English, and 1 more.
cut (sb) off
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Note added at 8 mins (2017-06-06 01:46:38 GMT)
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http://www.teclasap.com.br/phrasal-verbs-cut-off/
to cut off = to block or prohibit someone or something to pass, esp. a car [“cortar”, “fechar”, referindo-se à direção de veículos]
Christopher told us he was cut off by a crazy driver on the highway so he missed his exit.
Christopher nos contou que foi fechado por um motorista maluco na estrada e, assim, perdeu a saída.
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Note added at 20 mins (2017-06-06 01:58:37 GMT)
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Alguns vídeos:
https://www.youtube.com/results?search_query=driver cut off
| agree |
T o b i a s
: 'the thugs reportedly tried to cut him off'
2 days 18 hrs
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Thank you, Tobias!
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cut him up and block him in
https://en.oxforddictionaries.com/definition/cut_someone_up
But it wouldn't be to force someone to stop, so you probably need a couple of verbs.
Discussion
Também achei "cut off" em situações sem ser por barbeiragem:
https://www.google.com.br/search?num=50&client=firefox-b-ab&...
Ex.:
http://wsvn.com/news/local/police-uber-driver-shoots-kills-a...
Investigators said Anderson’s black Toyota sedan was cut off by a gray Dodge Caravan along the 3500 block of Northeast 192nd Street.
...
“That’s when the Dodge Caravan cut them off.”
“The driver of the Caravan exited the vehicle. He had two firearms in his hand; he pointed them at the Uber driver and demanded items,” said Goranitis. “He threatened to shoot him if he didn’t [comply] with those demands.”
Vi também intercept:
http://www.bordermail.com.au/story/4185703/teen-in-car-as-co...
The vehicle increased up to a speed of between 195km/h and 200km/h as police tried to intercept the car about 5.30pm.