An agonising, unwelcome, erect, inflamed penis causing havoc inside your body.
Though normally flaccid, Tom's appendix throbbed vigorously causing appendicitis.
by Spongebob Shit Pants May 12, 2020
Get the appendicitis mug.
Generally used in programming terms. Means to add something to a string or variable.
Append " dictionary" to "urban".

PHP Example:
<?php
$var = "Urban";
/* append to var */
$var .= " Dictionary";
?>
by suspended chaos September 19, 2004
Get the append mug.