Sort of all-purpose word. developed in my high school theatre class some 20 years ago. Something that is unstable or difficult; something that isn't quite right; something that shows signs of tipping over and whacking you on the head, or that might nail your shoe to the floor, either physically or metaphorically. Example: That shelf is all wambly.
WAMBLY
Meaning of WAMBLY in English
Slang English vocab. Английский сленговый словарь. 2012