"I'm a cowboy who never saw a cow"

This quote by Johnny Mercer is an amusing method of expressing the idea that somebody may not be what they seem. It suggests that although somebody might provide themselves as something they are not, they might not have the experience or understanding to back it up. In this case, the speaker is a cowboy, but has never ever seen a cow. This might be analyzed as a metaphor for someone who is pretending to be something they are not, or someone who is attempting to be something they are not gotten approved for. It might likewise be analyzed as a tip to be honest about our capabilities and experiences, and to not pretend to be something we are not. Eventually, this quote is a pointer to be honest with ourselves and others about our capabilities and experiences.