
A submissive, or sub, is a power exchange (also known as kink or BDSM) practitioner whose sexual preference, identity, or orientation involves willingly taking on the role of giving up some or all control to a Dominant practitioner. This type of dynamic or partnership is often referred to as a D/s partnership. (1)
Submissive variations may include brat, cow/pig, cuckhold, service submissive, slut, little, masochist, pet, princess, slave, spankee, kitten, babygirl (or boy), and bottom.
References:
Lee Harrington, Mollena Williams (2012) Playing Well With Others. Greenery Press. ISBN 9780937609583