Last night it was at all levels from FL290; we had to squeal for an immediate descent from FL370 north of MLA. Speed all over the place and bouncing around like a kid on a trampoline. One easyJet crew asked for descent and were told to "Standby". Great reply from the crew "I don't want to standby I want to descend because of turbulence" Maybe the ATC guy in his warm stationary room won't ask a crew to "Standby" again!! North bound it wasnt too bad over Bilboa, got lumpier near Nantes. Have the joys of the same route tonite