A fork of Rural Dictionary
When having analingus with a lover... Urinate inside her...
Yeah so I totally pulled the Fill 'er Up on my lady friend.
The term used to tell someone that they should deposit some more petrol in the tank of thier car if you are drugged to the eyballs
Person 1 says: Hey your tank is empty, maybe you should fill er up
Person 2 hears: <mumble> fill er up
When a man puts his penis into a girls anus and urinates.
She was running a little low, so I had to fill-er-up.