Lyrics:

It’s unclear exactly which Mike they’re referring to.
But it’s proooobably Mike Mahan, their former guitarist, whom they bust on in other songs.
1, 2, 3-

I got athlete's foot
Showering at Mike's (Oi! Oi!)
I got athlete's foot (Oi! Oi! Oi!)
Showering at Mike's (Oi! Oi!)
I got athlete's foot (Oi! Oi! Oi!)
Showering at Mike's (Oi! Oi!)
Athletes foot at Mike's

I got athlete's foot
Showering at Mike's (Oi! Oi!)
I got athlete's foot (Oi! Oi! Oi!)
Showering at Mike's (Oi! Oi!)
I got athlete's foot (Oi! Oi! Oi!)
Showering at Mike's (Oi! Oi!)
Athletes foot at Mike's

I got athlete's foot
Showering at Mike's (Oi! Oi!)
I got athlete's foot (Oi! Oi! Oi!)
Showering at Mike's (Oi! Oi!)
I got athlete's foot (Oi! Oi! Oi!)
Showering at Mike's (Oi! Oi!)
Athletes foot at Mike's