A strap-on for a female computer. Mispronunciation of hardon.
I got an add-on in PC world.
by Delusional October 08, 2003
Often associated with a program. Add-on refers to an additional feature not included in the inital release, available later usually as a download.
The new Internet Explorer add-on allows you to permanently highlight text in yellow so you can see important information.
by ADB October 12, 2003
A climbing game similar to HORSE in basketball. Two or more climbers will alternately climb up a wall/shelf/boulder one or two holds at a time in attempt to make their move too difficult for their opponent to complete. Each time a mistake is made or a player falls a letter is added. Whoever does not have ADD ON spelled by the time everyone else does is the winner.

This game is common among bouldering cllimbers.
Climber1: "Hey dude wanna play add on?"

Climber2: "Yeah. I hope you can set on a backstep to a pinch hold, bitch!"
by climbtimeBITCH July 02, 2011

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×