The act of adding in a new character to a story for the sole purpose of killing him/her, usually early on. This is a reference to Gears of War, where the Carmine characters were killed off early and often.
Person 1: I'm writing a war story were everyone dies.
Person 2: How do you keep it so long?
Person 1: I add a character to advance the plot, then kill him off.
Person 2: Quit Carmining, man!
The action of believing that you know everything about any sport, this person doesn’t physically participate in any sport but has strong opinions on them all
"Do you think Kevin De Bruyne deserved a team of the season"
" You don't know what your talking about stop calvining!"