なんちゃって
nan chatte

Expression

1. just kidding; not!

Colloquial
Pre-noun Modifier

2. ersatz; imitation; phony; pretend; fake; faux

その制服 せいふく、前 まえかのカノになんちゃって女子 じょし こう せいプレイさせるために ってたもんなんてバレたら・・・。
sono sēfuku zenkanoni nanchatte joshikōsē purei saseru tameni katteta monnante baretara....
If she finds out that that uniform was one I bought to get my former girlfriend to be a pretend 'high school girl' ...
Other forms: