Parlé de la main gauche

Expression that someone will use to try to explain that two people are not communicating very well

Nadyne dit: encore une fois Éric parlé de la main gauche.

Gauche

lacking ease or grace; unsophisticated and socially awkward.

Lp is gauche as fuck

Gauche

Awkward, clumsy, maladroit, inept

Come now Kaiba, don't be so gauche