Iv never used Pisser as an insult.
"You're such a pisser." That just wouldnt make me angry.
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To be "pissed" in the UK means to be drunk, which is kind of odd because in America it means to be angry. Which makes it sound like America can use a drink.
Anyway, when words like that have other more common meanings it's hard for them to be effective as an insult.
Where something like "fucktard" does a great job of combining "fuck" which is a universally useful cuss word with "retard" which has horrible connotations in our society making "fucktard" doubly effective.
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