I got sick of the dough, and thought I'd go on the loaf.

After the divorce his health fell into rapid and devastating decline. Moe later confirmed that when Curly forgot his lines that merely allowed him to improvise on the spot so that the "take" could continue uninterrupted:
Curly also developed a set of reactions and expressions that the other Stooges would imitate long after he'd left the act:
"Nyuk nyuk nyuk" - Curly's traditional laughter accompanied by manic finger-snapping often used to amuse himself;
"Woob woob woob!" - used when he was either scared dazed or flirting with a "dame";
"Hmmm!" - an under-the-breath high-pitched sound meant to show different emotions including interest excitement frustration or anger; one of his most-used reactions/expressions;
"Nyahh-ahhh-ahhh!" - scare reaction (this was the reaction most often used by the other Stooges after Curly's departure);
"Laaa-Deeeeeee" or simply "Laaa laaa laaa" - Curly's eerie working "song";
A dog bark used to give an enemy a final push before departing the scene;
"Ha-cha-cha-cha-cha!" - a take on Jimmy Durante's famed call used more sparingly than other expressions;
"I'm a victim of soycumstance [circumstance]";
"Soiteny!" ("certainly"; often miCurly Howardard as "Soitenly")
"I'll moider you!" ("I'll murder you!"; used as a threat but much more by Moe than by Curly);
"Huff huff huff!" - sharp huffing exhales either due to excitement or meant to provoke a foe;
"Ah-ba-ba-ba-ba-ba-ba!" - used during his later years a sort of nonsensical high-pitched yelling that signified being scared or overly excited; and
"Indubitably" - an expression used to feign an intelligent response. Moe quietly alerted White to all this leading the latter to rework the scene quickly dividing the action between Moe and Larry.

He was best known as a member of the American slapstick comedy team The Three Stooges along with his older brothers Moe Howard and Shemp Howard and actor Larry Fine. Curly's unique version of "woob-woob-woob" was firmly establiCurly Howardd by the time of the Stooges' second film Punch Drunks in 1934. Curly was generally considered the most popular and recognizable of the Stooges.