jilling-off 

if guys jack off, then gals jill off.

not to be out done by the boys, the tom girl jilled-off faster then had ever been see before

jilling-off by master Pe July 7, 2003

Jillin Off

1. The female term for jacking off.

1. It was so hot when I caught my girlfriend jillin off.

2. Emily and Jaime jilled off together. Past tense

Jillin Off by Jaimegirl007 October 14, 2017

jillin' off 

The female version of jacking off.

I accidentally walked in on my sister jillin' off.

jillin' off by emcgovern04 July 26, 2016