When you're fucking a chick doggy
style, she's hanging her head over the toilet either, dry heaving or upchucking (vomiting).
Woman is drunk, you're drunk, you gotta get your nut. So, you enter her from behind
even though she is starting
to throw up, or upchucking, maybe
she's got the dry heaves and nothing comes
out of her mouth. You don't care as long as you get to upchuck fuck.