tree jizz 

Pollen created by trees, which is used in fertilization, that some people may consider sex. Usually used by humans which are allergic to the pollen, dendrophiliacs, or those inclined toward anthropomorphism.

Fucking tree jizz drives my sinuses insane!

tree jizz by Chris Fancsy October 23, 2006

jizz tree 

A jizz tree is the term for the Bradford Pear tree (Pyrus calleryana) whose flowers emit a smell like semen.

Comedian Bob Kelly once puked when smelled his mic screen after it was smeared with flowers from jizz tree.

jizz tree by Watsonia February 21, 2014

Jizzum Tree 

A common tree in the Northeast that when in bloom it has the awkward smell of semen. College campuses, particularly in Pennsylvania, are covered with these trees making it a standing joke at all universities to walk outside and smell the Jizzum Trees.

Welcome, parents, to Millersville University. It may smell like sex is in the air but I assure you it is not your 18 year old daughters getting a Moose Knuckle for the fist time. It is only the Jizzum Trees in full bloom.
Right this way is the school Dining Hall....

Jizzum Tree by NB27 June 17, 2008