What does Boxing Day have to do with boxing?
1640s, "small number of military men detailed for some purpose," from French esquade, from Middle French escadre, from Spanish escuadra or Italian squadra "battalion," literally "square," from Vulgar Latin *exquadra (see square). Until the introduction of automatic weapons, infantry troops tended to fight in a square formation to repel cavalry or superior forces. Sports sense is recorded from 1902.
To ejaculate semen; come: the filthy pigs spunking into women (1970s+)
[apparently fr Celtic spong, ''tinder, touchwood, punk,'' fr Latin spongia, ''sponge''; apparently semantically fr a resemblance between semen and a spongy excrescence found on trees, in which sense the word is found in British dialect]