What means wag

[kay_r]

Hi everyone,
I’m from Germany and on social media’s like YouTube I hear often the slang word “wag”. I’m not sure if this is correctly spelled, but it’s often used in sentences like: this is really wag. I think, it means lame or something like that. 
I’m very thankful if anyone could tell me the correct spelling and what it really means. 

[Schuyler]

Hi kay_r!

Do you any examples that you can share of where you heard the word? I think you are most likely talking about the word "wack", which as you guessed is slang for "lame", "bad", or "inferior", but without an example, it's impossible to be sure.

[kay_r]

Hi Schuyler
Many thanks for your answer. “Wack” is exact what I mean. Thank you for the correct spelling.