So this nice looking blond is working on a crossword puzzle, while on a flight from Miami to Phoenix. She was working right through it when she had a frustrated look on her face. The gentleman sitting next to her noticed and asked "what clue seems to be giving you trouble?" The blond looked at him with contempt and said "I know this answer- I'll remember" and continued to study the puzzle. About 45 mins passed and she was still staring into the puzzle. So, the gentleman decided to ask her again if he could help.
She finally says "alright I give up!" and asks for help. She says "I feel so stupid, I know this answer!" "what's a three letter word for BMW?"