Similar to my association with "Sir Psycho" I can't think of "Pea" without remembering dudes at my middle school singing it while giggling (mostly due to the curse words and defiant attitude of the song). It's also amusing that Flea's sole (?) singing/songwriting attempt with the band contains no fancy bass playing whatsoever.
Bad comparison but I feel like "Sir Psycho" is simply a whiteboy version of a pornographic funk track like Ween's "LMLYP". The audacity of the lyrics seems to be the entire point. Not really worth analyzing beyond that- I mean, these are the guys who wore socks on their dicks we're talking about here.