Getting so drunk the night before that you wake up the next day to a fat hairy (ocasionally mexican) "female" laying next to you
Also, marrying and/or allowing your best friends to marry and cohabitate with a large, hairy hemanbitch, that is always busting out of clothes 3 sizes too small, while sitting on the couch eating ice cream and asking their counterpart to bring it back and forth from the freezer because she may burn calories on the way that she must have to maintain her wookie figure.
"Man, those jaeger bombs tore me up so bad I made like 3 wookie mistakes in a week..."
"I am a sad panda...I let my friend make a wookie mistake, and now he is lost in the jowls of that nasty hemanbitch."
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.