ex-twin 

1) girls who became friends and then learned they have the same ex

2) girls who became friends after breaking up with a guy cheating on them

3) girls who both hate their ex (they have the same ex obviously) and bonded over that

"ally is my ex-twin and my bestie!"

ex-twin by thesneeky1 May 21, 2016

Extwinktion 

When a twink loses his twink characteristics due to age (usually 20-25), generally gaining significant weight and / or becoming hairy. *Usually results in depression for gay men.

Oh shit, have u seen Jonny lately? Fuck mane, he's headed for extwinktion.

Extwinktion by jFET April 19, 2016

extwinktion 

When a twink becomes older and becomes more masculine than feminime

Im in my 30s and nearing extwinktion

extwinktion by BanitoGnome April 22, 2023