Top Definition
1.girl who is your best friend when she is single and then ditches and forgets who you are as soon as she's with someone

2.a guy who is is big but not muscular ie."thick"
"Ash and Jay are so in love shes been a massball ever since they got together."

"Uh uh i never thought she'd be a massball, yo she a bitch for that:"

"Damn girl ur man is a massball,he too big for you."
by leonor aguilera October 25, 2006
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.