slug it out
Upper Intermediate (B2) informal
To fight or compete hard against someone for a long time until one side wins
"The two boxers slugged it out for twelve brutal rounds before a decision was reached."
Hear it in context
Joe Rogan Experience #2487 - Action Bronson
PowerfulJRE · 86:46
He tried to like slug it out.
Gary Gallagher: American Civil War, Slavery, Lincoln, Grant & Lee | Lex Fridman Podcast #499
Lex Fridman · 55:59
His preferred way of fighting wasn't just kind of slug it out.