a particularly significant episode in evolutionary history, characterized by the "sudden" appearance of many of today's extant fauna. alternatively, when in the company of drunk evolutionary biologists, it can be used to refer to an explosive orgasm .
yo, did you hear what dan said to that pregnant woman at the darwin party? he kept repeating, "i'm going to have a cambrian explosion all over your face". man, was he wasted.
by safjbab;b April 3, 2008

A woven mat of bacon, double wrapped around a log of Italian sausage, drenched in BBQ sauce and smoked for 3 hours.
by omnomnombacon August 2, 2009

A highschool Dj that has entered the game a few years ago and is making it big. He has released many mixes and is getting better after each one. He mainly mixes genres such as inidian, reggae soca rap and hip-hop.
by Acidplanet_member April 18, 2005

by Nickaliss March 29, 2004

Having or soon to have a massive boner, woodie or hard-on so large you will brutally erupt all over yourself. CAUTION: the act of a trouser explosion may impose to scrotem bursting, trouser leakage and major skin sack reduction.
Guy 1: Did you have fun last night with ur girl?
Guy 2: Yea but i had a major trouser explosion.
Guy 1:What happened?
Guy 2:She grabbed my wang.
Guy 1:Awsome!
Guy 2 :Yea except for one thing my cock popped.
Guy 1:Nice.
Guy 2:Plus it was ur sister and she drowned in semen
Guy 1:Nice.
Guy 2: Yea but i had a major trouser explosion.
Guy 1:What happened?
Guy 2:She grabbed my wang.
Guy 1:Awsome!
Guy 2 :Yea except for one thing my cock popped.
Guy 1:Nice.
Guy 2:Plus it was ur sister and she drowned in semen
Guy 1:Nice.
by your worst n!ghtmare April 5, 2010

Jim finally got close to Mary on the couch when suddenly he had a snuggle explosion and inadvertently got cum all over his grandmother's handmade throw blanket, and his cat.
by Black Hair Rob January 20, 2011

When you're sitting on the pot and you've got diarrhea and you blast a dukie SO hard that it explodes out of your butt, leaving your toilet in ruins, and you with a bloody ass.
by skank ass weasel May 1, 2003
