beast mode

noun

slang

: an extremely aggressive or energetic style or manner that someone (such as an athlete) adopts temporarily (as to overpower an opponent in a fight or competition)

"Well, I thought he [Evgeni Malkin] was in beast mode tonight, it seems. You know? He was a threat all night long."—

Mike Sullivan, quoted at nhl.com

After a difficult junior season plagued by injuries that slowed him down, Centennial running back Kavaughn Clark is back in full beast mode.—

Richard Obert

—often used in the phrase go beast mode

"I had to go beast mode today, I owed them from the first time," said [Kendall] Lauderdale, the team's leading scorer …—

Chris Trevino

"We talked to Maggie about making a quick move, but I pulled her aside right before, and I said, 'It's time to go beast mode,' and she did," [Tyler] Pedersen [Platte Valley head coach] said.—

Jacob Lang