This is a pictograph of someone moving unsteadily, which represents the verb to stagger.
Illustrative Text Reference:
Harappa: Tablet: H-940 B: Sayid Ghulam Mustafa Shah and Asko Parpola, 1991: Corpus of Indus Seals and Inscriptions: Volume 2: Page 340: Collections in Pakistan: Suomalainen Tiedeakatemia.