1 definition by Jason Houang

Top Definition
A new word showing fondness to a person with whom you are chatting with on AIM (AOL Instant Messanger). Acronym for: "I butt kissed you", meaning, this person wants to kiss your butt out of love.
"IBKY, Aaron, since your so hot and or sexy", said Gladys.
by Jason Houang October 19, 2007

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