verb, to regard a previous statement as untrue, erroneous, or otherwise disagreeable. usually used to imply the connotation that further discussion of the matter should be postponed until the offending party becomes less dicktarded. notably awkward when used in a certain company.
Sean: So Dylan said he punched Danny in the face AND he was a tree in the play, and you believed him. Are you effing retarded?
Jill: No!
Sean: I disagrr...