PervStall 

The act of waiting until a girl with a nice ass (or any sort of ass you like IDGAF) passes you and when that happens you follow them from behind as if you were going to your class or car. This results in a period of time of the girl's nice ass to be infront of you and you now have the ability to see it without being that suspicious.

Perv 1: Dude!
Perv 2: Fucc U want?
Perv 1: PervStall
Perv 1: Let's stall for a couple seconds 'till that girl to walks past us and walk behind her so we can check it out
Perv 2: Damn thats a nice plan.

PervStall by Unexpected_Jihad_LEL October 25, 2017

pervstache 

The mustache worn by most child molesters.

While not all child molesters have such a mustache, it is the preferred facial hair for any pedophile that is serious about his work.
The pervstache is typically a standard mustache extending from one side of the mouth to the other and is generally accompanied by a pair of glasses. However, some pedophiles are aware of this stereotype and have strayed from the typical pervstache.
To avoid suspicion, some child molesters will stray from the typicall stache and opt for a handle bar mustache or a fu manchu and will possibly even go so far as to grow a goatee. Under no circumstances will the pederast willingly go without any facial hair.

Did you see that guys pervstache.
It looked like he was wearing on of those "Groucho" fake glasses, nose, and mustache things.

pervstache by scoomdot June 11, 2006

peristalsis 

Rhythmic visceral muscle contractions in the digestive system that function to transport ingested materials caudally, unless stimulated by the emesis reflex where the flow of digested material is reversed.

Dude, last night Veronica's peristalsis was inhibited by my massive cock.

peristalsis by CheesyBear November 7, 2014

reverse peristalsis 

An inaccurate alternative term for regurgitation or vomiting, typically used by grade school science teachers who don't actually understand science and use the urban dictionary instead of a competent textbook to source classroom material.

While reverse peristalsis in the small intestine can occur during vomiting, the actual act of vomiting does not involve peristalsis.

The technical term for vomiting is not reverse peristalsis it is regurgitation.

reverse peristalsis by MrScience April 25, 2011

reverse peristalsis 

n. the act of vomitting. (Peristalsis being the sequence of muscular contractions that moves food down the esophagus, the reverse of which would bring food up the esophagus.)

Sam drank too much. He's in the bathroom engaging in reverse peristalsis.

reverse peristalsis by Android March 9, 2005

external peristalsis 

that act of moving the chips in the bag without actually touching them

Oh that guy is eating his chips using external peristalsis

external peristalsis by dashoaa February 24, 2008

pervstache 

noun: a word that describes the mustache of a pedophile/future pedophile (or that of Michael Cleveland). For the full grown pedophile, the mustache is normal facial hair usually in the style of a fumanchu or something of the sorts. Now for the future pedophile, it is STRICTLY baby hair in the stache & goatee style.

WHOA! Look at the pervstache on that one!

pervstache by everyday09 March 27, 2007