Confabulation rhymes with:
tabulation, tabulation, tribulation, accumulation, articulation, calculation, coagulation, deregulation, emulation, formulation, granulation, innoculation, inoculation, manipulation, miscalculation, overpopulation, overregulation, ovulation, population, recalculation, regulation, reregulation, simulation, speculation, stimulation, stipulation, strangulation, tabulation, tribulation
Confabulation sounds like:
compilation, completion, conflation, convolution, cosmopolitan