At reggae gigs, during a tune someone will call out "Drum an' bass!!". The band stops, and 'drummie' and I will hold it down solo for a few bars... just hanging on the groove of whatever tune we're in, staying deep, no leaving the building. It's an effective trick, to pare a tune down like that to its elements from out of nowhere.
Calling out "Riddim!!" means keys and guitar, the 'top' of the rhythm section, play a turn solo... drums out, the bottom is gone- just skanky, up-stroke chop, almost like wallpaper without the wall. Maybe a hit of delay or similar from the guitar to tail off over the top of the steady *chop of the rhythm...it's all about the pocket, like the old Studio One dub-style recordings: Lee Perry, King Tubby, etc. Fun to do live.
But no extended wankery.