An anal toy, used by males or females. Primarily used to stretch and relax the anus over time for a good fucking.
After Jessica had the buttplug in for a few hours, she was ready to get butt fucked.
by john August 30, 2004
n1: An anal device with a distinctive, rounded, conical shape that abruptly tapers off before reaching a flat, disc shaped bottom. The anus is gradually stretched until passing over the largest part of the device, after which the device abruptly tapers off to the disc shaped bottom, hence the "butt" is "plugged".

n2: An insult used to chastise someone who's behavior is annoying you and/or others. The insult infers that the person inflicting the annoyance on you and/or others is becoming as irritating as an unpleasant and unwanted experience of anal penetration.
Example for n1: "Babe, before we try this, we might want to use a butt plug."

Example for n2: "Hey! Cut that out. You're such a butt plug!"
by Aubreyness November 22, 2005
1. A sexual device that is inserted into the rectum and held there by its conical shape. Supposedly to apply pressure to the prostate gland, resulting in more powerful orgasms.

2. A stupid individual, a dolt, a dumbass motherfucker
You no good son of a bitch, you're nothing but a fucking butt plug!
by Robert E. Porter January 10, 2006
an apparatus used during masturbation to lengthen the orgasm
by skittle5 October 21, 2004
an ass dildo used to simulate butt fucking; you can use this to simulate being on the "bitch end" of a booty juke
Damn, man! I misplaced my butt plug!
by Nasty Nate June 20, 2003
I masterbate inserting a butt plug into my rectum.
by Masked Pillager December 11, 2002