Wiktionary
give it to someone
vb. 1 (context slang English) To beat up or punish someone. 2 (context slang English) To put up a fight against someone. 3 (context slang English) To have sexual relations with someone.
Usage examples of "give it to someone".
He knew that George had the loot and that he had to give it to someone.
If your legion cannot match the pace of the others under my command, then I will remove your rank and give it to someone who can make them march.
If I stopped in to see him, he'd yank Mancuso out from under me, and give it to someone with more experience.