When playing a platformer game your character slips into an area not desired.
"MARIO.... you butterfooted faggot... you fell straight into the fucking hole!!!"
by mariodeath October 16, 2009
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When a male partner licks butter (peanut, regular, almond, truffle, etc.) out of a female counterpart's ear, while she smears butter (peanut, regular, almond, truffle, etc.) all over his penis, then proceeds to give him a foot job (a hand job, but with feet) with that butter.
"Oh my god, Becky gave me the BEST butterfooter of my entire life last night, I was completely amazed by 'what dat foot do.'"

"Do you mind if I hit up Becky? Heard her butterfooter game was a 10."
by Brybread December 30, 2016
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