Synonyms of fooling

1 Syllable
prank, sham
2 Syllables
farce, bluffing, trifling, spoofing, teasing, kidding, jesting, joshing
3 Syllables
roughhousing, rowdiness, pretense, roughhouse, mockery, frolicking, clownishness, nonsense, horseplay, skylarking
4 Syllables
buffoonery, shenanigan