What is the meaning of eff?

possible profanity

verb

9
 
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APAWordNet. (2010). eff. Retrieved May 26, 2019, from http://smartdefine.org/eff/definitions/1272280
ChicagoWordNet. 2010. "eff" http://smartdefine.org/eff/definitions/1272280 (accessed May 26, 2019).
HarvardWordNet 2010, eff, Smart Define, viewed 26 May, 2019, <http://smartdefine.org/eff/definitions/1272280>.
MLAWordNet. "eff" 23 October 2010. Web. 26 May 2019. <http://smartdefine.org/eff/definitions/1272280>