I have no idea what that means (Dab), nor do I want/need to.
But yes, a train wreck...

I do a Dab every morning
In America
It’s when you take a small amount of cannabis concentrate and heat a ‘nail’ = quartz crystal ‘bowl’ if you will , with a blowtorch to 720-900 degrees Fahrenheit - the nail is on the male end of a ‘dab rig’ which would be similar to a small ‘bong’ except designed dofferent
Your inhaling vapor of highly concentrated cannabis , usually 70-99% thc , I use a method of extraction called ‘closed loop’ which involves a system and butane used to extract essential oils from plants
Or the dab is a stupid ass dance move or something