That's not actualy 'trolling', that's 'griefing' and it's hilarious.
My mates and I did it in Black Ops, my friend was playing 'sticks and stones' and another player was smack talking before the match about how we were all doomed and how good he was with the tomahawk. He was from somewhere in the southern US.
My friend made it his mission to kill him exclusively all through the match, every tomahawk was thrown at this guy, every bolt fired at him and every ballistic knife discharged in his direction and every time he died we'd all yell:
My housemates and I said:
TAH-MAH-HAAAAAAAAAAAK!!!!!!!!!!
He quit after one match, every time he tried to talk smack he'd sprout an axe handle and have to respawn amid the noise of 5 jeering drunken students screaming 'tomahawk'. He sent us a rude PM after the match deriding our skills...we sent him one back.
Guess what our one said?