Meaning of “SinMama(シンママ)”

“SinMama(シンママ)” is an abstraction for “Single Mother(シングルマザー)”.
In this case, “Sin” (シン shin) doesn’t mean new (新 / shin), so be careful.

Example Conversation

A: I went through a lot when I was a kid.
B: Really?
A: Yeah. My mom was a “SinMama(シンママ)”, and my little brother was still very young.

A: 俺、子供の時は結構苦労したんだよね。
B: そうなの？
A: うん。シンママだったし、弟も小さかったしね。