eff - definition and synonyms

verb 

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/ef/
present tense
I/you/we/theyeff
he/she/iteffs
present participleeffing
past tenseeffed
past participleeffed

phrasal verb

eff off

[intransitive]
present tense
I/you/we/theyeff off
he/she/iteffs off
present participleeffing off
past tenseeffed off
past participleeffed off
British impolite
used as a less offensive way of sayingfuck off’, which is a very offensive way of telling someone to go away or saying that you do not agree with them