A completely spontaneous urge to shit that has no "holding" potential. You feel it, and you have literally seconds to find somewhere to put it. The actual shit is usually more gaseous and wet than solid doo-doo, and typically explosive. (The term can be used as both a verb and a noun.)
verb: That Thai food was fantastic, but it made me X-Bomb nine times the next day.
noun: I had 12 seconds to find a toilet to release my X-Bomb into, and I couldn't find one. Now I need to change all my clothes.
noun: I had 12 seconds to find a toilet to release my X-Bomb into, and I couldn't find one. Now I need to change all my clothes.
by MC Hammerhead April 27, 2006
Get the X-Bombmug. Josaline: hey girl whatchu doing?
Millie: hi I'm doing hot girl shit
Josaline: wdym
Millie: I'm listening to moon x
Josaline: the guy who moans for 25 minutes on a mic?
Millie: YES YOU KNOW HIM?? SLAY YOURE SUCH Q GOOD FRIEND
Go listen to moon x. This is a threat. He has such a pretty voice nngh~!! Anyways yeah go listen to him.
Guys with deep voices moaning: muah, heaven
Millie: hi I'm doing hot girl shit
Josaline: wdym
Millie: I'm listening to moon x
Josaline: the guy who moans for 25 minutes on a mic?
Millie: YES YOU KNOW HIM?? SLAY YOURE SUCH Q GOOD FRIEND
Go listen to moon x. This is a threat. He has such a pretty voice nngh~!! Anyways yeah go listen to him.
Guys with deep voices moaning: muah, heaven
by HELP I FAILED DYING/ j June 26, 2022
Get the Moon xmug. 
Radio X is a radio station in Grand Theft Auto: San Andreas which plays alternative rock, predominantly. Such music includes Soundgarden, Rage against the Machine, and Ozzy Osbourne.
by Xerxes November 11, 2004
Get the Radio Xmug. A totally awesome show that started in the 90's and got really popular. It was one of Fox's major hits starring agent Fox Mulder(David Duchovny) and agent Dana Scully(Gillian Anderson). Scully was sent to watch over Mulder and to debunk his unconventional work. Because of Mulder's crazy beliefs in the paranormal, he took the role of the "believer" and she was the "skeptic"; always taking the side of science. As the show progressed, Scully started to trust Mulder more and more, and they became better friends. And, well, fall in love.
by Ana Robin May 31, 2007
Get the x-filesmug. People in western countries born from the mid-1960s to 1980 approximately. You can imagine them as a blend of Boomers and Millennials in both good and bad traits but way more cynical. You might be cynical too if you were stuck between those two.
by VastBleek November 15, 2019
Get the Generation Xmug. The largest high school party ever. Consists of huge amounts of drinking, girls, boobies, music, ninja security guards and ecstasy.
by TillTheBreakOfDawn June 8, 2012
Get the Project Xmug.