The tip of your dick being at an abnormal angle or not even there at all.
"Dude my doctor diagnosed me with Tiptacalyosis!"

"What the hell is that?"

"Well lets just say the tip of my dick is at somewhat of a 90 degree angle"

"Fuck dude thats totes gnarly"
by Dustythecat January 21, 2012
Get the Tiptacalyosis mug.