usually said to someone immature, or who gets on your nerves. Usually means to grow some pubes, or some balls.
by FerretMan November 3, 2004
You're sitting at a stop sign hoping to make a left, and the person in front of you is also attempting to make a left turn. However, this person in front of you is being very timid about reading traffic and making his move and you're increasingly pissed because he's missing oppertunities so you start screaming "Grow Some!"
by DJ Swellous December 14, 2010
On the definition of his name, Gumba challenged his chicken shit enemies and creed-hating imitators to grow some and stop being so scared of tackling him in a real flame war.
by Gumba Gumba April 13, 2004
by dtm2 January 12, 2011
by Ashers213 August 21, 2006
by Grinning Assassin January 3, 2010
To behave more courageously and/or maturely: to behave like a grown woman as opposed to acting like a little girl. The female equivalent of grow some balls or grow a pair.
Evil right-wing bitch Ann Coulter should grow some ovaries and make amends to Democrats she slanders instead of writing libelous books accusing liberals (read: any civilized human being) of her own wrongdoings. BTA, she probably wasn't born with ovaries.
by Stop the Pendulum August 22, 2006