When a girl mysteriously doesn't put out or have sex, it is assumed that she is too nervous or is scared of penis AKA cockfright
"Man, I've been trying to get some from Kelly for weeks but she just won't put out." "Maybe she has cockfright."
by Stephanie Beans November 28, 2007
When one has been with the same penis for a long amount of time and is too afraid to get some strange.
by Lilaaaaaaaaaaaay December 18, 2014