interjection
Jocular pun on すみません (sorry/excuse me/thank you) and 千円 (1000 yen). Used humorously when apologizing or thanking while implying a small monetary cost or compensation.
遅れてすみま千円!
Sorry I'm late — that'll be 1000 yen!
手伝ってくれてすみま千円。
Thanks for helping — here's a figurative 1000 yen.