punch up

/ˈpʌntʃ ˌʌp/verb
RareNot in standard dictionaries
1

To beat (someone) up by punching, to fist-fight.

2

To attack, counterattack, or target a group of greater power or status than oneself.

3

To make bolder, zestier, or more exciting.

4

To switch (a source) into the main transmission.

#slang