After cumming in a girl's or guy's butthole, you pee in it.
I fucked this girl in the ass last night and after I busted in her butthole, she asked me for a top off, so I peed in her butt.
by vinny vega December 11, 2006
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as an inside joke at a wedding by the best man: "when times are hard, you've always been there to top me off"

as an inside joke when filling people's beer cups at a party with a pitcher, filled up from the keg: "anyone need a top off?"

when you actually poop in someone else's butt
by meaty hand man August 04, 2008
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1.When a female gives oral stimulation to her partner. 2. The art of sucking dick.
Ayo man I was eatin a steak n cheese sandwich and gettin topped off at the same time....that shyt was heaven
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(v.) to add additional gasoline to the gas tank even though the gas tank container is full. People do it to get the most bang for their buck, to have more gas in their car. This action can be dangerous and it is prohibited by most gas stations. Most gas station attendants do it anyway to sell more petroleum.
"No topping Off at my station" says the automotive saftey expert.
by T-Dog Jenkins May 01, 2005
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When you're already full, but you keep picking at your food and eating.
I'm so stuffed, but I'm still topping off until I finish my plate.
by FattyMatty2by4 March 11, 2019
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