A reference to a woman's backside - specifically a really well-formed one. So called because, as we all know, crossing a mule and an onion results in "an ass that'll bring tears to your eyes".
by Heathen 2.0 April 29, 2008

The process of having sexual intercourse where both participants are crying. Can be applied as a Triple Onion if a threesome is being partaken and so on. A Single onion is the most common.
"Hey man, heard you got lucky last night! How was it?"
"Turned into a bit of a Double Onion but It was still magical."
"Turned into a bit of a Double Onion but It was still magical."
by Classic Alfredo December 28, 2016

Unique sexual fetish in which the male inserts a peeled onion into the vagina of the female whilst forcing the peelings into her nose. The pleasure is often derived from the extreme tingling sensation within the nasal cavity
by BlueKittenZz December 2, 2014

by j76815 March 27, 2019

Adam (Gets out of the washroom) - Aw man
Frank - Choke another donkey?
Adam - Nope, dropped me an Emperor's Onion for the next guy..
Frank - Choke another donkey?
Adam - Nope, dropped me an Emperor's Onion for the next guy..
by Kallerack March 23, 2019

I am not fundamentally opposed to junk in the trunk, although my preference is a stuffed onion over an oozing pumpkin.
by Ledaml July 7, 2009

Winter Onions are a set of balls that are shriveled in a taut scrotum. Primarily due to the cold.
The opposite of Summer Onions which are a saggy, dangly, sweaty set of balls. Primarily due to heat.
The opposite of Summer Onions which are a saggy, dangly, sweaty set of balls. Primarily due to heat.
by Eaton Holgoode May 23, 2018
