In a FPS where you pull the pin of a grenade and hold onto it till just before it explodes then tossing it at an enemy for a almost unavoidable frag. (If done correctly the grenade will kill that person but won't harm you)
That noob is Cooking the Grenade on me! the cheap ass hoe!
Private Jenkins: Yo tailor what are you doing with that grenade? toss it man!
Corporal Tailor: I'm Cookin it on sec, *Tosses the grenade at the enemy*