To Darken the Doorstep is when you go to someone's home and you cast a shadow over their doorstep. It usually used to describe the action of someone you know and haven't seen for a while unexpectedly turns up at your home or it's something you tell an unwanted visitor not to do ever again.
Sue: "OMG, you never guess who had the nerve to darken the doorstep this morning."
Pat: "Who?"
Sue: "Jo!"
Pat: "Jo, Jo who?"
Sue: " you know the one that coursed all that trouble at my party."
Pat: " Oooh! That Jo, haven't seen her around here for ages, did you invite her in?"
Sue: " No I did not! Told her to clear off and to never darken my doorstep again."
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.
When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing peecalculus.