1 definition by The Idea Machine

1
(Noun): Something or someone that is unpleasant to all the senses.

(Noun): Slang for exclamation mark.
"Dude, stop being such a period boner."
"You seriously look like such a period boner right now."

"You can simply add a period boner to the end of any sentence to imply emphasis or intensified volume."
by The Idea Machine July 17, 2014
Get the merch
Get the period boner neck gaiter and mug.