"맞팔 하고싶은데 괜찮으시면 팔우해주시고 댓글단면 바로 답팔갈까요?"
I see such lines on some Websta.me or Ink361.com accounts, but they're slightly different (the meaning is similar):
맞팔하고 싶은데 괜찮으시면 팔로우해 주시고 댓글 달면 바로 답팔 갈게요.
- 맞팔: 맞 = 마주: mutual, 팔: follow, 맞팔 = following each other.
- 답팔: follow someone back. 답: answer, 팔: follow.
- 댓글 달면: If you comment. 댓글(comment); 달면 (if you attach/hang).
It is roughly:
I'd like us to follow each other so please follow me if you don't mind. If you make a comment, I'll follow you back right away.