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.

by MrScience April 25, 2011

Penissaurusrex

A mature sexist man who believes he's still attractive to women usually over 45 with a tiny cock and useless hands

See that old guy over there drinking halfs and staring at the barmaids tits he's a penissaurusrex

by Kali_mist November 4, 2016

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.

by Android March 9, 2005

perssasy

When you are sassy and are a percy jackson fan

She was perssasy after she read a Rick Riordan

by A_helper June 25, 2017

Parissa

A beautiful Persian girl with a wild streak. Even though she is pretty and everyone knows it, she is very insecure. Be careful what you tell her though unless you want everyone to know it.

Why is she so insecure when she's so pretty?
She must be a Parissa.

by Frans4Lyf January 6, 2013

penissaurasrex

One who cannot get their mind off of penisis. Often when they come out of direct contact with penises they cry.

Jim: I cant quit crying
Bill: Why did your mom die?
Jim: No i am a penissaurasrex and i cant find any cock

by Ah F June 12, 2007

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

by dashoaa February 24, 2008