Top Definition
A word said when a sudden and unexpected rousal of an emotional rush of energy comes about abruptly and the index finger of one of the hands is placed under the bottom lip and moved up and down with excessive vigor so as to make the lip flap up and down rapidly with an accompanying smacking sound.

variants: boo boo muss, skummer skuss, skummer skyuss, skummer biss, biss boo muss, boo boo biss
Man, o man. That was funny..."SKUMMER BUSS!!!"
by E March 23, 2005

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