Grab the scrotum sac and squeeze it from the base tightening the skin around the testicles. The result is a perfectly formed miniature "brain".
by Bret Austin September 10, 2004
Get the monkey brainmug. by mooseknuckles November 11, 2002
Get the Monkey brainsmug. by ImperfectTaborsk March 8, 2021
Get the Monkey Brainmug. The green wrinkly fruit that sole purpose on earth is for kids to hit with bats and roll down hills.
by Brian Lumpkin April 23, 2006
Get the Monkey brainsmug. by Snotcore February 12, 2023
Get the Overthink Monkey brainmug. The outcome of an unshaven scrotum being squeezed until the veins stick out. The shiny skin is evident, as well as the pubic hair. This looks like what would appear to be a small hairy brain. Hairy monkey brains!
by Green eggs and baaaam May 29, 2008
Get the hairy monkey brainsmug. 