BRITISH PHRASES
Cram - Before a big exam you would be expected to cram. This simply means to study hard in the period running up to the exam.
Crap - The same word in both countries - but less rude here. I loved watching Brits being interviewed on US chat shows and embarrassing the interviewer when they said something was "total crap".
Crikey - Another exclamation of surprise. Some people say "Crikey Moses".
Crusty dragon - A booger. One of the really crispy ones.
Daft - My Dad used to call me a daft 'apeth which is short for a daft half penny (in old money). It basically means stupid.