When someone's sexual desires and lust become pent up due to reasons outside their control. It may result in sick sexual fetishes like tentacle rape, tubgirls, bestiality etc...
If you ever looked at a doujin comic from Japan, you can tell their whole culture is extremely sexually constipated due to the vast amounts of disgusting fetishes they draw.
by MechaTC October 31, 2005
by the black avenger March 31, 2010
" What's up with him?"
"Oh, He's just sexually constipated dude! His girlfriend won't give him any."
"Oh, He's just sexually constipated dude! His girlfriend won't give him any."
by Borta58 June 16, 2012