In my youth, and early days on motorbike, I remember the somewhat older guys telling us young pups tales of tankslappers.. and their advice at the time was... if you got one accelerate out of it.
Hmmmm..
Luckily I never experienced a full-blown tankslapper.. but had more than a few wobbly moments due to front forks being filled with 10% oil and 90% water. Well no one told me that fork seals could fail !!!!!! lol..