It might be a combination of:
* "Wigwam": A traditional dwelling of some Native American tribes.
* "Wig": A head covering made of hair.
* "Saw": A tool for cutting.
* "Gamig": Could be a misspelling of a word, or a made-up word.
If you can provide more context, I might be able to help you understand what the person meant. For example, was this word used in a conversation, a book, or a song?