A male lacking a prominent chin, instead having a withdrawn chin. This is seen as ugly, unmanly and lowering your sexual market value. Used mainly on 4chan, but I would definitely like to see these -let words spread since they are so convenient. Similar to words such as brainlet, voicelet, manlet (being too short), wristlet, hairlet.
Be good all year. Christmas time. Wish for one thing and one thing only. Wake up Christmas morning excited. Run to the bathroom, giddy with expectancy. Flip light switch. Stare in to the mirror.

Still a chinlet.
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