like you said; oh yeah...; well...
Word type:
Standard:
そうだ
Example:
A: お前、ほんまにこのケーキ自分で作ったんか？
B: せや。
A: Hey, did you really made this cake by yourself?
B: Sure did.
A: あんた、もう飲まんほうがええで。
B: せやせや、もうやめとき。
C: せやなあ。そろそろ帰ろか。
A: You should stop drinking.
B: Yeah, I think so too.
C: Yeah, like you said. Shall we go?
Commentary:
Also see そや.