shitting his pants
Farting while in close proximity to others.
Don't go near Fred, he's shitting his pants.
shit his pants
Someone who has had an accident in their pants and/or a retard
very common with babies
very common with babies
Hey! Matt just shit his pants! What a retard!
driving like he shit his pants
driving extra slow and cautious as not to smear the shit around any more, not really wanting to get where you are going because you have a shit stain on your pants
that guy in the Prius is driving like he shit his pants