'tip over' definitions:

Cause to overturn from an upright or normal position; "The cat knocked over the flower vase"; "the clumsy customer turned over the vase"; "he tumped over his beer" [syn: overturn, tip over, turn over, upset, knock over, bowl over, tump over]

Turn from an upright or normal position; "The big vase overturned"; "The canoe tumped over" [syn: overturn, turn over, tip over, tump over]