pantsplosion 

A pantsplosion occurs when you shit yourself with such violent ferocity that feces erupts from the beltline of your pants. This is usually the result of being incontinent when wearing tighty-whities (the shit just has nowhere else to go).

Person1: Dude, what the hell? Your back is covered with shit!
Person2: Yeah, I ate too many rancid gas station hot dogs and couldn't make it to the can before pantsplosion.
Person2: Dude, it's up to your shoulder blades?
Person1: Word!

pantsplosion by RestInPeaceMoffTarkin March 10, 2011

penisplosion 

An intense abundance of fluid exiting the penis.

"Penisplosion" was the last word that Lynda remembers hearing before being shot against the wall by a neverending force of flowing semen.

penisplosion by Borisimo September 28, 2003

Phansplosion 

A sudden outburst if emotions caused by looking at pictures of Dan and Phil (phan).

I was feeling Phansplosion when I saw that picture of Dan and Phil's wedding in Japan.

Phansplosion by PhanDaddy April 24, 2017