It was originated in Rajouri
Garden, New Delhi by the great Mr. Khanna.
Its a
Hindi linguistic placeholder for usually things, moments, instances, descriptions in
general conversations.
1) Suppose in a situation where person A suddenly brakes while driving almost hitting a pedestrian.
Person B who, is obviously startled, can say " Yaar yeh
kya thassa
mara tu ne...dekh ke chala na??"
2) You are standing at night and you spot something weird in the
sky and remark " Oye...yeh
kya thassa hai?" or "Abe
kya hai yeh?? Badaa ajeeb thassa hai yaar"
3) You try and appetizer which you find it to be extremely scrumptious, you can remark " Tagrha thassa hai yeh" or " bhai thassa achha hai, try maar"
4) You are introduced to someone new and you find that
person to be weird. You can say to your friends " Guys, lets not hang out with this dude again...iska thassa theek nahin hai" or " Bada ajeeb thassa tha yeh...kyon bulaya ise??"