The delta
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A group sexual position named after some [airline] (ask around an airport and you might figure out who and why) in which the recipient of The Delta assumes a diaper changing position and is penetrated anally and [punched in] [the nuts] (or vagina) by one partner, as the other partner strangles the recipient with a telephone wire and shits in their mouth.
The delta meaning & definition 1 of The delta.