Definitions

1. noun

a person, especially a teenager, who feigns insanity or mental illness to avoid punishment or responsibility, often by producing absurd or incomprehensible responses to questions

“The psychologist suspected that the defendant was a ganser, trying to avoid a harsh sentence by pretending to be mentally unstable.”

2. verb

to feign insanity or mental illness, especially in order to avoid punishment or responsibility

“The lawyers accused their client of gansering in the courtroom, trying to deceive the judge with fake symptoms.”