What is Oil-pumping?
1.
When a male masturbates while sitting down on a toilet having a dump. It relates to the idea that he's pumping oil (poo) out of his behind with his penis.
"Hey Gary, let's sneak in the toilet and take a picture of Eric having a dump!"
"Yeh!"..
.."Oh shit man he's oil-pumping!"
See
Random Words:
1.
Having all the notes in tune on your instrument/voice
Dude, that kid sucks at guitar. Listen to his intonation!
See instrument, inton..