An overly dependent person, who is excessively needy and relies upon continued support from those around him. Much like a baby who must be sustained from his mother's breast, this person lacks the means to independently nurture and care for himself.
"Jay was nothing more than a 28-year old titbaby, who still lived off his parent's good graces and had his girlfriend wait on him hand and foot."
Someone who whines and complains about stuff. Often sounding like a child.
Eric says "why do we always have to take my car?" and Bob would respond "stop being a tit baby and drive"
A member a family of bitchy idiots, who have been known to suck on the teet of life.
Dickie doesn't know anything, and whines all the time, he is a "tit baby." His brother Nick is also a "tit baby."
Someone who deletes their ex-girlfriends friends from their MySpace page after a break-up.
Ryan deleted Jamie from his MySpace page because Jodi broke up with him. Ryan is a "Tit Baby".