smiley

adj

1. Cheerful and happy; smiling.

   “have a smiley demeanor”

   “a very smiley girl”

2. (slang)Having one's throat slit from side to side.

noun

1. A simplified representation of a smiling face.
2. (Internet)A sequence of text characters used to represent a mood, especially :) or :-) or other depictions of smiling.

   “How do you type the angry smiley?”

3. (rare)An improvised street weapon consisting of a length of chain with padlocks and other heavy objects affixed to one end.
4. (South-Africa)A roasted sheep's head.
5. A piercing worn in the upper frenulum (upper lip).

   “Smiley/Scrumper and Frowny Smiley and scrumper are both names for a piercing of the upper frenulum that attaches the center of the lip to the gums.”