A blowlunch is a person who vomits. It also can be a perjorative implying the only thing the subject can do is vomit.
That guy is a fucktard, assclown and total blowlunch.
The cheese like substance which collects beneath the foreskin
of an uncut male's penis
"Anticipating fellating his massive hog, she rolled back his foreskin and exclaimed, "Oh, shit! You're gross! No head for you, bucko. Fromundabutta!"