You fail at comprehension. It means I'm too short to have my head in the gutters.. referring to the gutters above houses that handle rainwater and whatnot.
It was actually a joke, silly Indian noob.
In any case, I said "
" because I initially said "...
mind IN the gutters," then you said you weren't high enough, meaning one of a few things:
1) A drug reference
2) A physical reference
3) An unintended lack-of-intelligence reference