noun

• (juggling) A pattern where the juggler passes objects horizontally from one hand to the other around chest height, and upward over the juggler's head to return to the first hand.
  "See also shower (juggling) on Wikipedia.Wikipedia"
• (obsolete) A battle, an attack; conflict.
  "With this I maye be sure to come sauf / and goo sauf / and that the quene shal haue her lyberte as she had before / and neuer for no thynge that hath ben surmysed afore this tyme / she neuer fro this day stande in no peryll / for els sayd sir launcelot I dare auenture me to kepe her from an harder shoure than euer I kepte her"
• (chiefly Ireland, UK, Australia, derogatory) A shower of shit.
  "You all behaved like a shower, now you are to be treated like a shower"
• (chiefly Ireland, euphemistic, derogatory, with of and an invective) Used as an intensifying pluralizer or intensifier
  "It was one of the worst feelings in the H-Block, one of the worst experiences to sit and listen to somebody getting beat. Because you were totally powerless, and you would always get somebody shouting at the door, “You shower of bastards!” It was always a crowd of screws and one or two naked men in a cell. They had total control."

verb

• (followed by with) To spray with (a specified liquid).
• (intransitive) To rain in a shower; to cascade down.

noun

• (slang) A man whose penis is close to its full (erect) size when flaccid, or the penis itself.
  "As a man who can best be described as a "grower not a shower", I helped Brent realize that many people in the gay community are concerned in a very adolescent way with their dick size, including me."