booby hatch

a mental hospital, an insane asylum
he did not turn himself in to the b–by hatch, nor did he use drugs.
actually misspelled.

b–bie hatch is an ancient term for small hatch covers intended to keep a species of seabird called a b–bie from entering a ship through portholes and other smaller ventilation opening.

the usage to mean insane asylum is probably related to events happening when things enter through a b–bie hatch. either its drunken sailor activity (urination, etc) or a very messy situation involving an excited seabird thrashing around madly in a confined sp-ce with a bunch of sailors.
someone left a (b–bie) b–by hatch open when we docked. a b–bie crawled in and then all h-ll broke loose after if the bird landed on the captain’s bowl of soup and shat in it. it was all arms and legs thrashing about for 10-15 minutes. and someone lost an eye to its beak before cook crushed the b–bie against a bulkhead with a skillet. yes a regular mad house all because of an unsecured (b–bie) b–by hatch.
a mental inst-tution
hes seeing crazy pigs send him to the b–byhatch.
any one of several special bras with cup openings, but especially nursing or open point bras.
coach had a real mental obsession with his mom and ended up throwing himself in the b–by hatch.

my mother taught me how to be a real subtle lady. she used to flash all the guys when she purposely bent over with an open b–by hatch under a loose shirt. the other women never knew.

she always used to say never fall asleep with an open b–by hatch or you might wake with a common sea bird perched on a nipple…that why they called them b–bies.