A person who is sweeter than sugar, and hot as hell, he makes his girl love every moment when she’s with him, he makes her have a reason to live, she can’t ever wait to hang out with him, and he is loved by many and everyone likes him
A blowjob
"Shit, I'll do that for free"
means
"Shit, I'll do that for a blowjob"
Free is used as an "Urban Alternative" for R.I.P. The word free is mostly used when communicating digitally.
Friend 1: When I was making cereal this morning, I spilled the milk all over myself.
Friend 2: Free