Coltish

['kəʊltɪʃ] or ['koltɪʃ]

(adj.) given to merry frolicking; 'frolicsome students celebrated their graduation with parties and practical jokes' .

Checker: Ronnie--From WordNet

(a.) Like a colt; wanton; frisky.

Checker: Lucy

a. Frisky, rampant, playful, frolicsome, sportive, gay.

Inputed by Jenny