Top Definition
Saying something whilst yawning. Normally occurs after someone yawns first, and then a subsequent yawn takes place. The subsequent yawn is when the yawnmentary happens.
Guy 1: *yawns*

Guy 2: *yawnmentary* oh why did you have to yawn? *done yawnmentary*
by yawny mcgee May 07, 2009
5 Words related to yawnmentary

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