Top definition
A gay person's asshole that is similar to a blossom. Inverted so that the inner is now the outter.
Bob was so easy and patriotic with his balloon-knot (butthole looks like a knot of a party balloon), that his blassom was sore after a vigorous night on the town.
by gmherps August 19, 2009
Get the mug
Get a Blassom mug for your mother-in-law Rihanna.