This paper introduces a manual movement performed recurrently by German children in the age range of four to six. Based on the movement gestalt and its meaning, we termed it the Slapping movement. All forms identified in the data were performed with a communicative function, yet they showed different degrees of “gesturality.” To be more precise, we observed versions that clearly count as actions or gestures, but we also observed transitional forms between them. Based on a thorough analyses of form, (...) meaning, and context we determined variations of the Slapping gesture that showed different degrees of abstraction from action to gesture in a semiotic sense. These degrees are distinguished by modifications in the execution of the movement and different levels of form stability, environmental coupling, and representational complexity. (shrink)