«يِخُش مِنِ الْعَتَبَهْ يِنَشِّفِ الرَّقَبَهْ»

A dry throat is the body's sign of strain: the mouth parches when someone feels cornered, awkward, or put on the spot. The saying's image of 'drying the neck' borrows that physical reaction to sketch a person who produces exactly this effect on others, and who does so the moment he steps inside.

As a verdict on character, it marks someone as chronically unpleasant and contentious, not occasionally irritable. Placing the trouble at the doorstep stresses that nothing softens his presence; he is a burden from first arrival, and his hosts would rather not have him at all.

Applied to a person whose disagreeable, contentious nature makes his company a strain from the very first moment. It is a negative judgment of habitual temperament, not a neutral description of a visitor or of one bad encounter.