killjoy

As nouns the difference between wowser and killjoy

is that wowser is (obsolete) a lout or similar disruptive person while killjoy is a person who is anti-fun, or prevents others from having fun.

is likely misspelled.

has no English definition.

As a noun killjoy

is a person who is anti-fun, or prevents others from having fun.

As nouns the difference between taxonomy and killjoy

is that taxonomy is the science or the technique used to make a classification while killjoy is a person who is anti-fun, or prevents others from having fun.