Answer: atoot

AnswerCrossword Clue
ATOOTGo on .. (carouse)
ATOOTOn ... (doing some heavy drinking)
ATOOTOn ... (spreeing)
ATOOTOn ... (carousing)
ATOOTOn ... (drinking and carousing)
ATOOTOn ...: spreeing
ATOOTOn ..: reveling
ATOOTReveling, after "on"
ATOOTOn ... (making merry)
ATOOTGo on ... (make merry)
ATOOTOn ... (reveling)
ATOOTOn ... (bingeing)
ATOOTGo on ... (carouse)
ATOOTOn .. (spreeing)