Sometimes abbreviated as "high as G.P.", this phrase can be used in general to describe anything that is very tall or high-positioned (physically). It is sometimes also used
figuratively when describing being "high" (
under the influence of a
substance, i.e. marijuana).
Man, I'm not
getting up on that
ladder. That thing is as high as G.P.
Dude, how much of that
sh*t did you smoke. **I don't know man, but I'm higher than giraffe pussy...**