Top definition
a man, usually above 18, who likes butterflies
Person A: Why did he take up lepidopterology?
Person B: Well, you know, he is a butterfag.
by nnn666 May 08, 2009
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug