An adhesive-backed label designed to be attached to a key on a
keyboard to indicate some non-standard character which can be
accessed through that key. Pasties are likely to be used in APL
environments, where almost every key is associated with a special
character. A pastie on the R key, for example, might remind the user
that it is used to generate the r character. The term properly refers
to nipple-concealing devices formerly worn by strippers in concession
to indecent-exposure laws; compare {tits on a keyboard}.
[glossary]