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To receive fellatio, while standing, from a girl who has her head cocked (pun intended) at a 90 degree angle from the floor. The distinguishing factor of a Side-Ways Sally is that only her head is turned; she is not laying down horizontally, but kneeling.
Friend 1: Dude, was that girl handicapped? She walked out with her head turned sideways...
Friend 2: Na Brew, she just got done giving me some Side-Ways Sally.
by Longcock McBasketballs May 15, 2011
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