At the ripe old age of nineteen   I bought a short-bed pick-up-chicks machine   Life ran on beer and gasoline   A half a lap ahead of the law      I had a fake ID that got me into Tuffies   Love was a word I used to get lucky   Was a big time spender with that plastic money   Back when I knew it all      Back when the world was flat   And mama and daddy didn't have a clue, that was back   Back when a pitcher of beer and a couple shots   Made me bulletproof      Back when God was a name I used in vain   To get a point across when I got ticked off   Lord I'm learning so much more   Than back when I knew it all      I found out credit cards don't mean you're rich   And beer and gasoline don't mix   Yeah, step side trucks can't jump a ditch   And those big house rooms sure are small      I've learned that love is a woman that will settle you down   A Sunday sermon can turn life around   Man I can't believe all the actors I've found   Since back when I knew it all      Back when the world was flat   And mama and daddy didn't have a clue, that was back   Back when a pitcher of beer and a couple shots   Made me bulletproof      Back when God was a name I used in vain   To get a point across when I got ticked off   Lord I'm learning so much more   Than back when I knew it all      I've done some growing up   And I'm still growing up   So I know I'll never be as smart as I once was   That was back      When the world was flat   And mama and daddy didn't have a clue, way back   Back when a pitcher of beer and a couple shots   Made me bulletproof      Back when God was a name I used in vain   To get a point across when I got ticked off   Lord I'm learning so much more   Than back when I knew it all   Back when I knew it all