slops

Chrysippus said that some Philosophers would in open view of all men shew a dozen of tumbling-tricks, yea, without any slops or breeches, for a dozen of olives.

The original "slops" were voluminous breeches of about knee length, reminiscent of 17th century "petticoat breeches", worn with stockings; these continue to be depicted as late as 1790s, but trousers, first introduced as slop-clothing in 1720s, were more functional and more popular.