A Japanese sexual term in which the female rubs her labia majora against the male's penis, without actual penetration.
My friend went into the cathouse for some major SUMATA. Unfortunately, they didn't speak Japanese and kicked him out.
by Gunblader September 17, 2006
Me: Yo, member Timmy from high school?
You: Ya, dat kid was mad chill.
Me: Well, dat kid is a sumata now.
You: Wow.
You: Ya, dat kid was mad chill.
Me: Well, dat kid is a sumata now.
You: Wow.
by Tould September 10, 2005