junk tweet 

Accidentally or more likely, purposely sending a picture of an exposed or scantily clad body part, specifically the crotch area, via Twitter.

What took you so long in the bathroom? Were you junk tweeting?

junk tweet by snapboom December 2, 2011

junk tweet 

Taking a digital picture of your genitalia and sending it via Twitter.

What took you so long in the bathroom? Were you junk tweeting?

junk tweet by snapboom July 7, 2011