The Proclaimers - It's Saturday Night lyrics

It's saturday night, i'm feeling on song I think i'm alright, i know i'm all wrong The drink that i had three hours ago Has been joined by fourteen others In a steady flow So lot me walk straight, don't let me feel pain I'm gonna scratch cars, with my keys again Cos when i go home and fall on my bed If it doesn't leave my stomach, it'll split my head.