Bird Bed.  Noun.  Origin: San Francisco.  An interpretive dance celebration requiring 3 superstars (preferably all males) engaging in missionary coitus, where one person (on all fours) acts as the bed.  See examples below:

Bird Bed Fast Facts:
- Started as an all boys club until recently in Atlanta when females began to participate to the dismay of some of the original male members.
- Bird Bed has never been performed sober.
- Original Bed named Bird, hence the name “Bird Bed”.
- No one (openly) gay has performed it.

Thanks Graham…for Bird Bedifying Atlanta.

Update 9.25.2009: Chicks take over the Bird Bed via Glen Hotel’s rooftop during the Whynatte bash.