Rhea Perlman, diminutive Cheers bartendress (and queen of spades), has been caught cavorting with the seven-foot-seven Sudanese basketball star Manute Bol (seven of clubs) in a highly explicit (and in this case, anatomically improbable) two-digit act of congress (three of clubs). (For more, see here)
I've tried too many times to understand it, googled it and still don't understand fully this sentence.