touch of the tism

when a person is exceeding difficult or socially obtuse; when their behavior suggests the potential for a mild end of spectrum diagnosis; you do not want to be politically incorrect and rashly call someone retarded or autistic, but you're deeply frustrated with their conduct and rigidity

When you're a "tad" bit autisic. Commonly used in a disrespectful manner in schools across Ireland and the UK.

indicating one has a smudge of autism. Often used to make fun of oneself, or someone else.