Know-it-all

Besserwisser

(one who obnoxiously claims to be knowledgeable on a subject)

Besserwisserin

(one who obnoxiously claims to be knowledgeable on a subject)

Klugscheißer

(one who obnoxiously claims to be knowledgeable on a subject)

Klugscheißerin

(one who obnoxiously claims to be knowledgeable on a subject)

Neunmalkluge

(one who obnoxiously claims to be knowledgeable on a subject)

Neunmalkluger

(one who obnoxiously claims to be knowledgeable on a subject)

Rechthaber

(one who obnoxiously claims to be knowledgeable on a subject)

Rechthaberin

(one who obnoxiously claims to be knowledgeable on a subject)

Schlauberger

(one who obnoxiously claims to be knowledgeable on a subject)

Schlaubergerin

(one who obnoxiously claims to be knowledgeable on a subject)

Schlaumeier

(one who obnoxiously claims to be knowledgeable on a subject)

Schlaumeierin

(one who obnoxiously claims to be knowledgeable on a subject)

Schulmeister

(one who obnoxiously claims to be knowledgeable on a subject)

Schulmeisterin

(one who obnoxiously claims to be knowledgeable on a subject)