A pompous ass that proclaims he can do something, which far exceeds any capabilities he really has. This usually occurs in a person who has an inflated ego and has been drinking heavily. When he attempts to backup his talk, he fails miserably and is a complete embarrassment.
Oh, you need someone on your team for beach volleyball? The rest of these guys suck. I could've been on the Olympic team if I wanted, so it's pretty obvious that you should choose me. I'm your "Best Option"!
When a pompous ass tries to do something that he is incapable of doing. This self absorbed person thinks they are the best option for anything compared to anyone else.
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”
Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.