To force one cock down anothers throat with furious anger and acute targeting of the tonsil to induce mass gagging, vomiting and the always inevitable "GUAC". The person/persons recieving the "GUAC" will often elect to be killed afterwards.
Yo I was babysitting John sister and I totally made that bitch guac on my cock
Dude shut the fuck up or I wont let my mom guac you
Hey nigger wanna make a penny? Come here and give me a good guac