Definition: Aka tribadism or scissoring. Women rubbing their genitals together in order to achieve sexual gratification. Synonyms: scissoring, tribadism Date Added: 13 April, 2009
Definitions From Urban Dictionary:
When two lesbians rub their vaginas against eachother the same way as double-dildos are used, just without the dildo of course. Example: In pornography it is likely to find 'tribbing' scenes in female-friendly porn.
See tribadism Example: No really, you should SEE tribadism!