Stanksplosion

When one has a really loud and boisterous fart that sounds like it could have been the ambient soundtrack to the Vietnam War.

I think Nick just crapped in his pants!" "No It was just a stanksplosion.

Stanksplosion by Happy Nick August 12, 2011

Sacksplosion 

Occurs when a great deal of pressure is placed on the scrotum causing it to split and everything inside to erupt out.

When the car drove over his nut sack it resulted in a massive sacksplosion

Sacksplosion by Toas May 27, 2009

Sharksplosion 

/noun/ {shahrk-sploh-zhuh n} A rapid increase in volume in an area pertaining to the release of sharks in an extreme manner.

"Look over there at that sharksplosion."

Sharksplosion by Sharksplosion December 4, 2012