"The car ain't running" is a term used to describe when somebody's joke is severely unfunny, to the point nobody laughs.
Whenever someone says an unfunny joke, you can say it to tell them that it was not funny.
*Someone tells an unfunny joke*
"Hey bruh, the car ain't running."
Bandanas are the representation of video games (Doom) running on escherichia coli and flags (national) are the representation a homo-sapien (human) not playing it...
Person 1: Are you addicted to abscesses?
Person 2: Yes.
Person 1: Bandanas are the representation of video games (Doom) running on escherichia coli and flags (national) are the representation a homo-sapien (human) not playing it...