A fart so deadly it causes the extinction of most life forms in the planet.
This is the latest fringe theory explaining the demise of dinosaurs.
It was brought to light due to the discovery of previously undetected concentrations of fossil dingleberries in late Cretacic strata.

Noun: a friend who is usually only called upon by a friend when a more primary/prominent friend is unavailable.

Taken from the term “second string” in an athletic competition situation. In football, if the star quarterback gets injured during a play, the second string is called off the bench to replace him/her. A “Second String Friend” is essentially benched until needed, if ever.

Synonyms: Plan B, Second Choice, Secondary Friend, Benched Until Needed

A fart which would start off the multiverse by creating multiple big bangs throughout space itself and If one happens it proceeds to break space time itself until it crashes the simulation without us knowing.