v., int., & n. coarse sl.
v. 1 tr. & intr. have sexual intercourse (with). 2 intr. (foll. by about, around) mess about; fool around. 3 tr. (usu. as an exclam.) curse, confound (fuck the thing!). 4 intr. (as fucking adj., adv.) used as an intensive to express annoyance etc.
int. expressing anger or annoyance.
n. 1 a an act of sexual intercourse. b a partner in sexual intercourse. 2 the slightest amount (don't give a fuck). fuck all nothing. fuck off go away. fuck up make a mess of. fuck-up n. a mess or muddle. °A highly taboo word. fucker n. (often as a term of abuse).
[ 16th c.: orig. unkn. ]