A getter that performs actions other than returning the corresponding attribute without documenting it.
Example: method getImageData which, no matter the attribute value, every time returns a new object.
Venera Arnaoudova, Massimiliano Di Penta, Giuliano Antoniol. “Linguistic antipatterns: what they are and how developers perceive them". in Empirical Software Engineering (ESEM), 21(1), Feb 2016. 104-158. 10.1007/s10664-014-9350-8