hassle (n.) Look up hassle at Dictionary.com
1945, American English, perhaps from U.S. Southern dialectal hassle "to pant, breathe noisily" (1928), of unknown origin; or perhaps from hatchel "to harass" (1800), which may be a variant of hazel, the name of the plant that furnished switches for whippings. Noted in 1946 as a show biz vogue word.
hassle (v.) Look up hassle at Dictionary.com
1951, from hassle (n.). Related: Hassled; hassling.