Verb (slang)
English: be not attentive, be distracted, be lacking focus
KLCP:
Notes
The verb Dach literally means "be absent," but when applied to a person who is obviously present or otherwise accounted for, it is usually interpreted to mean that the person's mind has wandered. It does not mean "absentminded," which involves forgetfulness. Rather, it means that the person is, for whatever reason, not focusing on the task at hand. Non-slang equivalents are qImHa' ("not pay attention") and buSHa', ("not focus [on], ignore.")