neutrois
nine-dollar bill
no homo
no strings attached
nonbinary
NSA
off the spectrum
omniromantic
omnisexual
on the cross
on the make
on your tod
open relationship
opposite-sex
oral sex
orgy
orphan
otter
out
out-and-proud
out of the closet
outing
over the bridge to Pimpleton
owl
pangender
panromantic
pansexual
passing
passion fruit
pegging
An individual whose gender identity is not strictly (binary) male or female, either a mixture of both, or an absense of either; an umbrella term for various nonbinary identities
an individual that is attracted to all genders, or regardless of gender.