Sweat drop
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In manga and anime, a sweat drop is a common visual convention in which a character is drawn with one or more prominent beads of sweat on their brow or forehead (or floating above the hair on characters whose back is turned). The convention may be puzzling to readers unfamiliar with manga and anime, as the drop has become associated with a broad spectrum of emotions, including embarrassment, exasperation, confusion, and shock, not all of which are necessarily considered to be sweat-inducing under normal conditions. Examples include: -_-' and ^_^'. It is frequently used in reaction to another character's bad pun or joke, or when a character's friend does something stupid or silly that makes them look bad.
In some parts of Indonesia, this expression has become slang. It is written "SWT" and pronounced es way tay. It is used in talking with close friends as an indication of a lame joke or when hearing something that does not make sense. This may be a result of the popularity of the Ragnarok Online on-line game, where the player can type "/swt" to display a sweat drop.[citation needed]