Deceit - heavyweight, imposing

Joke - flimsy, lightweight

Joker: one who jokes or jests

Juggle: To manipulate balls, &c. dexterously: to practice artifice or imposture. v.t. to move, get, chance, &c, by artifice: (usu. to juggle with). to misrepresent (facts) - n. a trick by sleight of hand: an imposture. Fraud.

April Fool's Day '...custom of playing practical jokes or sending friends on fools' errands on that date....origin unknown...'