Yiddish for a big eater; usually applied with at least a small degree of admiration; generally, no double entendre is intended
After baby Jacob guzzled down 10 ounces of formula in one sitting, his grandfather declared, "This one's a fresser."
by Defining Mike March 12, 2016
"We're all fressers." Lenny Bruce
by JCHengwyte April 6, 2007