Top definition
1)The act of asking someone in a quick and slurred why to splooge in your butt.

2) Or the made up last name of a kid you really hate.
1) Yes, yes, oh god yeah creaminmabutt.

2) hey you know Julio, Julio Creaminmabutt, yeah he's such a dick.
by Fredmcburger39 October 20, 2013
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