I have no idea what kind of clichés exist for the Jordanians.
What I do know is for the Arabic people in general:
Potential terrorists and kidnappers. When I told my friends and family about the emigration, I never had heard more rubbish in my whole life. I felt ashamed and disappointed about the so called facts they digged up from the media and "real life stories" instead of just asking.
But I see the opposite: kind, warm, friendly, sharing and most hospitality people I ever encountered. Yes, they have faults too just like any other nations.