He used to simulate stuttering while talking, in an humoristic way, trying to pronounce some words and finally replacing them by others.
In a famous French sketch, "Les crĂŞpes", he explained the recipe that way, with sentences like this one: "Then you add some mamerlade, oh sorry ! Some marlamade...
Uh! Me, I pour some chocolate".
Pierre Repp appeared in many theatre plays and TV shows, but mainly in music-hall and cabarets in Paris or on tour.