Fuck comes from the early 16th cent.: of Germanic origin (compare Swedish dialect focka and Dutch dialect fokkelen); possibly from an Indo-European root meaning strike,
shared by Latin pugnus ‘fist.’
Despite the wideness and proliferation of its use in many sections of society, the word fuck remains (and has been for centuries) one of the most taboo words in English. Until relatively recently, it rarely appeared in print; even today, there are a number of euphemistic ways of referring to it in speech and writing, e.g., the F-word, f***, or f—k.
go fuck yourself, an exclamation expressing anger or contempt for, or rejection of, someone.
not give a fuck ( about) used to emphasize indifference or contempt.