look up any word, like turnt:
 
1.
n. A penis, the male reproductive organ. An exotic variation, the r should be rolled.
Let me stroke your large, brown rotunda.
by Emma The Red January 14, 2005
 
2.
a big white ass that older women have
hey ellen phillips has a rotunda man its kinda stinky but i would still hit it.
by b ran jannsen May 21, 2008