cluster fuck , slanglish for:
1. A sexual threesome usually involving two men simultaneously copulating the vagina and anus of a woman.
Synonyms: chance sandwich; club sandwich; design for living; double peptide; flesh sandwich; ménage à trois; sandwich; Oreo cookie; sandwich; sausage sandwich; séance à trois; three decker; three high; three-hole activities; three-in-a-bed: three-layer cake; threesies; three-way; three-way split; three-way swing; threesome; triple shag.
See also: cicisbeism; double-entry; Three P; three-way woman.
2. An act of group rape.