It is a word meaning "please" that is typically (but not in all dialects) considered feminine. ____ It also is commonly used as "give me" or "can I have?". "Sono enpitsu chodai" = give me that pencil.
'Choudai' is an [often, but not in all dialects] feminine form of 'kudasai,' meaning "please." It is often used in the context of asking someone to give you something. Such as 'tabako choudai,' or 'enpitsu choudai.' ("Give me a cigarette," "Give me a pencil.")