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third-person singular simple present tribs, present participle tribbing, simple past and past participle tribbed
(slang) To sexually stimulate one's vulva against another person's; to scissor. quotations
They had tribbed often in the past, but never in this particular position, though Laura came slowly to realize that this was a natural for them
2006, Miranda Mars, “{ASSM} Laura - Chapter 303”, in alt.sex.stories (Usenet)
According to the school newspaper, the Daily 49er, a group of approximately 24 Cal State Long Beach students "tribbed" (or scissored--you know) with each other for some 10 minutes in protest of the censorship of the title of their play, The Night of the Tribades.
2010, Vickie Chang, Cal State Long Beach Students Scissor Each Other in Protest Over Censorship of Play