kühlerer
Kühlerer is a nonstandard or informal comparative form of the German adjective kühl. In standard German, the comparative degree is formed with kühl → kühler, and the superlative with am kühlsten. The form kühl erer or kühl erer, written as kühlERER here, is not part of normative grammar and is generally considered incorrect in formal writing. It may appear only in casual speech, playful language, or as a deliberate stylistic device in humor or satire.
In typical usage, speakers would replace kühl erer with the standard küler form: der Raum ist kühler
Some linguistic environments or dialects may tolerate nonstandard comparatives for emphasis or rhythm. However, such forms
Kühlerer is not a recognized standard form. It appears only as a nonstandard variant in informal contexts