The male or female partner of a large breasted (usually) woman who has above average incapabilities of dealing with social situations.
A
"Why did you leave so early?"
B
"Chris was such an Awkward Titmouse. He kept touching and not talking."
A
"Your parents must be really pissed off now"
B
"Yeah, this is the second family party when he's done this"
by Bettina Elizabeth October 20, 2008