Written form only attested from early 16c. OED 2nd edition cites , in the form fukkit ; earliest appearance of current spelling is -- "Bischops Buck cites proper name John le Fucker from , but the surname could have other explanations. The word apparently is hinted at in a scurrilous 15c. The relevant line reads:. The earliest examples of the word otherwise are from Scottish, which suggests a Scandinavian origin, perhaps from a word akin to Norwegian dialectal fukka "copulate," or Swedish dialectal focka "copulate, strike, push," and fock "penis.
To have sexual intercourse with. To engage in sexual intercourse. To tease or treat someone carelessly or indifferently. Often used with with. Used as an intensive: What the fuck did you do that for? Used for intensive effect in idioms such as beat the fuck out of someone for beat someone very badly. Used in the imperative as a signal of angry dismissal.