Top Definition
The act of placing ones schlong into the belly-button of a person.
Marc: My belly button is tight like a tiger!
Dwayne: I am turned on.
Marc: u wanna try buttoning.
Dwayne: Okay, I'll ask Martin for a condom
Martin: GO-GO-KARTIN
by PeetrMurfee August 16, 2011
The process of anal sex
Bruh, I saw Laquisha today, we were buttoning mad long
by FletchHD June 16, 2016
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