Twanged / twanging / Twangage - The art of discretely unclipping a females bra with the click of your finger and thumb in one swift move to create a look of panic on the recipient of the twang. This tends to work best on an attractive work colleague at Christmas parties etc.
An absolutely foolproof way to keep minors from viewing content deemed "too mature" for them to watch.
Billy: "So I was trying to watch some videos for an M rated game, and I ran into an age gate, so I put in my real birthday. SOMEHOW it managed to figure out that I am 12. CURSE YOU AGE GATE!!!"
Bill: "Fucking age gate! *quick scroll* THERE! I was born on January 1, 1904. Fuck you age gate."