Glossary entry (derived from question below)
Portuguese term or phrase:
arrego
English translation:
Fear (Nesse caso)
Portuguese term
United States
I Love Large Projects! / 22+ Years Exp.
Native in: English (Variants: UK, British, US, Canadian, US South, New Zealand, Australian)
Works in: Spanish to English, German to English, French to English, and 2 more.
arrego
"...o manifestante estava jogando o "arrego" fora.."
and
"...a denunciada disse que a partir daquele dia nao iria bater mais arrego"
Reference: http://www.dicionarioinformal.com.br/arrego/
| 4 | Fear (Nesse caso, arrego é sinônimo de medo) |
Mario Freitas
|
| 4 | to beg for mercy |
Ena Smith
|
| 4 | to surrender |
Gilmar Fernandes
|
| 4 | to give up |
Marlene Curtis
|
| 3 | bribe |
Rosemberg Souza
|
Aug 10, 2015 16:49: Mario Freitas Created KOG entry
Oct 1, 2016 04:14: Mario Freitas changed "Field" from "Other" to "Art/Literary"
Proposed translations
Brazil
32 years engineering/law/contracts
Native in: English (Variant: US) 
, Portuguese (Variant: Brazilian) 
Works in: English to Portuguese, Portuguese to English
Fear (Nesse caso, arrego é sinônimo de medo)
Throw one's fear away.
A partir daquele dia não sentiria mais medo.
As of that day, she'd no longer feel any fear.
to beg for mercy
United States
25 + yrs. Business experience PORT- ENG
Native in: Portuguese , English
Works in: Portuguese to English, English to Portuguese
to surrender
United States
Marlene Curtis
Native in: Portuguese , English
Works in: English to Portuguese, Portuguese to English
to give up
http://forum.wordreference.com/showthread.php?t=1866612
There isa slang expression — “arrego, pedir arrego” — or “giving it up.” For example, you cannot hold a funk dance without paying off the police. If you oppose the scheme, you die.
http://tupiwire.wordpress.com/2013/08/25/upps-impose-state-o...
bribe
Another similar interpretation is when the (corrupt) police charges a bribe from the people to keep an area safe. This is also called "arrego"
https://www.otempo.com.br/capa/brasil/caderno-do-tr%C3%A1fico-traz-pagamento-de-arrego-1.342743
Discussion
O Houaiss 2009 confirma que é brasileirismo: n interjeição
Regionalismo: Brasil. Uso: informal.
expressa desistência, impossibilidade de continuar suportando uma situação (por medo, irritação, impaciência ou constatação da derrota)
De qualquer forma, continuo sem entender o significado de jogar arrego fora e bater arrego. Na Internet também não há constância desses sintagmas.