Why is it der Pisser?

Pisser ends in -er, and most nouns ending in -er are masculine: in a German dictionary, 86% of them take der.

All nouns ending in -er
Sense 1
der

Meaning

[1] Derb: A man of urinating

[1] derb: ein Mann der uriniert

[2] Derb, youth language: an insult in the meaning that is noticeable male

[2] derb, jugendsprachlich: eine Beleidigung in der Bedeutung verachtenswerte männliche Person

Examples

[1] The pisser makes the snow yellow

[1] Der Pisser macht den Schnee gelb.

[2] We gave it to the piss yesterday

[2] Den Pissern haben wir es gestern gegeben.
More source examples (1)

These dictionary examples can include historical and less common uses.

[2] Hey, you piss pissing!

[2] Hey, du Pisser! Verpiss dich!

Declension

1 Singular Plural
Nominativ der Pisser die Pisser
Genitiv des Pissers der Pisser
Dativ dem Pisser den Pissern
Akkusativ den Pisser die Pisser

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary