Word for Stroller Toppling Over

If you have a kid and a stroller, I’m sure you’ve experienced this many times. You hang a lot of stuff from the handle of the stroller, and when the kid jumps out of it, the whole thing topples over.

One of my friends wants a word for this (a verb). I tried to think of one, but I couldn’t come up with a good one. (”Stropple”, for instance, isn’t so good because the sound of it lacks the impact of the actual event.) Can anyone think of one?