activities consisting of the mouth, like thumb sucking, smoking, ingesting food, kissing, biting one's nails, speaking, and oral sex.

ORAL BEHAVIOR: "Oral behaviors often come in the form of bad habits that are quite hard to break and sometimes done almost involuntarily, such as biting the inside of one's cheek or lip."
Cite this page: N., Pam M.S., "ORAL BEHAVIOR," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/oral-behavior/ (accessed February 24, 2021).