The actual of taking a dumb while, or shortly before eating, effectively draining the old substance to add in fresh product.
Person #1: You gonna get off the dumper and eat those pizza rolls, or you just gonna let them go cold?
Person #2: No, just a routine oil change. Gotta empty it out before I fill it back up.
Person #2: No, just a routine oil change. Gotta empty it out before I fill it back up.
by DCShred96 March 3, 2017

The act of chugging water while urinating. Typically in the middle of the night after a long day of drinking too much.
I drank so much yesterday, but I’m not hungover. Probably because I did 3 oil changes in the middle of the night.
by Truco20 December 15, 2023
