I never knew that was a slang term

How do you even find/notice these things

"Maybe I do"

Photoshopped: It originally said "solid advice"
http://3.bp.blogspot.com/-sAwnle7QgQg/U0HlVAmGVNI/AAAAAAAAEjk/QhTHT1TVapM/s1600/Iron+Man.jpg

and slang is slang for short language

Tomorrow is marvels 75th anniversary