Where's my thies? (Where's my car?)
That's a big Thies! (That's a big tumor!)
I'm thies! (I'm on fire!)
can also be used when something is dull and boring because no one cares but you.
students: "why did you count our answers wrong when they were right?"
techers: "because you obviously cheated off each other"
Characterized by or proceeding from mental dullness; foolish; senseless
Tediously dull, esp. due to lack of meaning or sense; inane; pointless
Slow to learn or understand; obtuse
only a hardened Thys would say something like that
that party was so Thys