1. An annoying yet friendly fella;
2. A person or animal, often a small one, such as a child or small pet. Frequently prefaced by "little."
American slang (particularly rural), not to be confused with the British cuss word.
1. My little cousin is been begging me to help him, he's such a buger sometimes.
2. He's a cute little buger.
She's a tough little buger.