Lyric discussion by onetwothreefourfive 

The guys in Weezer apparently have smoked a lot of weed.
So I always assumed this song was about the weird social cocoon you find yourself in when you go to a party where everybody's drunk, but you're completely stoned. The short lines “I'm me — Me be — Goddamn - I am” represents disjointed existential thinking. The singer finds his 'center' of self assurance in the fact that he is, he can, and he can sing. In this manner, he avoids stoned paranoia, and is content to just chill out. However in this situation some people, especially drunk people, will find it funny to try and disturb a drug user. The sweater is therefore the comfy high the singer is enjoying at the party, but this could potentially be ruined by others. The ease with which this is possible is represented by the simplicity of pulling a thread while he walks away. Later on the singer mentions that after unraveling his sweater, he'll be naked, and I take this to mean his ego will be fragile.

The relevance of the tank top and superman skivvies I thought was the dress of the antagonist who seeks to ruin the singer's vibe. There's hope of a peaceful resolution in that the singer doesn't want to “destroy your tank-top” (ruin his good time) and they should just be friends and walk away. The superman skivvies seems like something a 'lad' (or 'frat-boy' in the US I'd imagine) would wear to a party but be embarrassed of when he passes out drunk and his friends steal his trousers (for a joke). At the end of the song, the negative consequences of both drugs are mirrored when “Lying on the floor, I've come undone” is repeated.

Of course, it could still be about a relationship, but being Weezer I'm not so sure.

@onetwothreefourfive 'The guys in Weezer apparently have smoked a lot of weed. ' Of course they have!

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