A facial accoutrement sliced from a round green citrus fruit's (Lime) peel. It is usually made from the peels of limes found in bars, the peel is cut into a half diamond and placed on the face. The Lime Beard is to be held by the wearer right under the chin.
It is important to note that other citrus fruits held on the chin (while stylish) are socially unacceptable.
2. Sometimes found naturally on Parakeets a small green swell under the beak.
"Come on Chet hang on to your lime beard or it will fall off...Limes are not sticky you know."