Tickle fetishism, also known as knismolagnia, knismophilia, or titillagnia,^[1] is a paraphilia where an individual receives sexual pleasure from tickling, being tickled, or watching someone be tickled. Individuals may prefer to be the dominant party, known as a ler (from tickler), or the submissive party, known as a lee (from ticklee), or they may enjoy both, known as a switch. Some people may prefer to be tickled in specific areas, typically in an erogenous zone or other particularly sensitive areas of the body.^[2]

Restraint, bondage, and sexual humiliation may be aspects of an erotic tickling session, though they are not necessary. A BDSM tickling session can involve submissive partners being tied or restrained in a position that exposes bare parts of the body, particularly those that are sensitive to tickling, such as the feet or armpits. The body being exposed can also be intended as a form of humiliation or exhibitionism for the lee, or as visual stimulus for the ler. Tools may be used to tickle if desired.

• Tickle torture
• Tickling
• Sensation play

• Erik11. The Dom's Guide to Tickling. Aaron Brown, 2019. ISBN 978-1-7339988-1-9
• Moran, Michael. Erotic Tickling. Greenery Press, 2003. ISBN 1-890159-46-8
• Courtois, Wayne. My Name is Rand. Suspect Thoughts Press, 2004. ISBN 0-9710846-7-X
• Courtois, Wayne. In the Time of Solution 9. Lethe Press, 2013. ISBN 1-59021-277-0

• Glossary of clinical sexology (it – en)