A sweat of swingers
A nobbin of swingers
A squidge of swingers
A press of swingers
An ouze of swingers
I must confess my mind was on the same track as Vix's.
Re-lookinging at it however I think ....... A mingle
For male swingers , it could be a ..............sacfull
and for women , it could be a ...........c***full , sorry i don't like using that word
A circus of swingers
A band of swingers
A gaggle of swingers
a dithering of newbies ??
a slither of swingers?
an Ooooh of swingers?