Green’s Dictionary of Slang

full of... phr.

SE in slang uses

In phrases

full of crap (also full of bean soup, full of feces, full of prunes)

[1930s+] (orig. US) contemptible, stupid, nonsensical.

full of puha [Maori puha, puwha, a (prickly) sowthistle]

[2000s] (N.Z.) talking nonsense.