A tampon. Use of this slang for "tampon" was made popular in the 1976 horror movie, "Carrie," starring Sissy Specek and based on a Stephen King novel. In the movie there is a scene where Carrie, showering after gym class at school, begins to menstruate for the first time. She is frightened because her extremely religious mother had never told her about periods. Carrie, no stranger to classmate bullying, is teased about this and the girls in the shower chant, "plug it up, plug it up, plug it up" while throwing tampons at her.
Girl to friend: Let's go swimming.
Friend: I can't. I just started my period.
Girl to Friend: So? Plug it up and let's hit the beach!
by YinzerInPgh January 30, 2009
1. worthless

2. to shoot someone, especially to death

3. positive publicity

4. to give positive publicity

5. to copulate
Your pet is totally plug.
by The Return of Light Joker March 27, 2010
A useless person
Colin is a plug
by Adam6793 June 26, 2014
Somebody or something that is the only source left available, so it must be put to use.
Johnny sucks at Point Guard in basketball, but he is the only player left on the roster who is able to play point guard. Therefore, Johnny is a plug.
by Johnny Futbol September 15, 2013
A link to one website from another website. A link that is usualy linked in an article, a news update, or a linkdump.
A term usualy used by webmasters.
Wow, my site got plugged by camelstyle.net, and my server crashed from all the traffic.
by Nextri June 26, 2007
A device that is inserted into the rectum, generally for sexual pleasure
My man used a butt plug on me last night. It was the first time I had ever had one, and it was FANTASTIC!
by Panchoman Jr. November 02, 2006
V. 1. the act of sexual intercourse, usually with a very filthy intent
Person 1: "Ohhhh, BoA... you would plug?"
by Ross Yamamoto December 22, 2004

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