A festival of purepornography and sexual indulgence with a simultaneous worship and acknowledgement of the birth of Jesus Christ on the blessed day of december 25th.
I'm so horny right after Thanksgiving...knowing that Sex-mas is right around the corner, I pre-order and priority ship all my sex toys from Amazon.com to insure they arrive on or before Sex-mas so that I am not left out of the sexual festivities.
- To jitter your legs under your desk/whilst sitting down in a shaking movement (often whilst being bored). Comes from the equipment 'Double Bass' that a drummer uses.
'Dude, quit Double Bassing man! You're shaking up my coffee!'