when your tampon or pad is soaked and you don't have any extras so you stuff your underwear with tissues and it looks like a boner
by Nothingsushere January 8, 2016
(Noun): Something or someone that is unpleasant to all the senses.
(Noun): Slang for exclamation mark.
(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."
"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