caper, shenanigans, rollick

frolic, lark, rollick, skylark, disport, sport, cavort, gambol, frisk, romp, run around, lark about

alcoholic bucolic colic embolic epsitolic frolic hydraulic hypergolic melancholic Mongolic nonalcoholic phenolic pollack pollock rollick rowlock symbolic systolic (vicar) apostolic vitriolic workaholic (extracted from my Rhyme Guide)

antic, caper, caprice, escapade, fancy, fooling,frolic, gag, gambol, high jinks, horseplay,hotfoot, lark, levity, lightness, monkeyshines,play, put-on, rib, rollick, roughhouse,roughhousing, rowdiness, shenanigans, shine*,skylarking, spoof, sport, tomfoolery, trick, whim

beatnik, bedrock, berserk, bespeak, bethink, bulwark, catwalk, cowlick, earmark, haddock, hammock, hassock, haycock, hemlock, henpeck, legwork, midweek, mistook, mollusk, network, obelisk, outback, ransack, recheck, redneck, restock, rethink, rollick, seasick, spelunk, sawbuck, skylark