someone who is unpredictable

From STEM, an abbreviation short for "Science, Technology, Engineering and Mathematics", a STEMlord is a pejorative term for a particular kind of person who has studied in these areas at university or works in these fields who holds a pretentious, condescending attitude to anyone who has studied in any other fields, particularly the Arts and Humanities. They typically believe themselves to be more "intelligent" and "rational", while generally remaining incredibly ignorant outside of their areas of expertise and having the charisma of a rotting pig's backside.

A firearm designed to be carried and operated in one hand, usually the right. Some are ambidextrous, i.e. the P-38.

I really hot girl with a hot body.

kinda like shotgun, but used when no one wants to sit next to the driver. whoever calls pistol gets to sit in the back seat

the stock secondary in tf2 for the scout and engineer class
a good midrange weapon nothing really interesting about it though

verb: to call pistol. the alternative to calling shotgun, to call the bitch seat in the middle of two people in the back. usually said in a gay accent.