Frankenmom

A middle-aged, fake boobed, fake-tanning, brazillian waxing, navel-piercing, reality-TV-obsessed woman who dresses like a slutty 12-year old and hangs out with her kids' friends, clinging to a fabled youth that was never hers to have. She takes all the wrong lessons from youth culture (and pop culture in general), with no ethical or aesthetic scruples whatsoever.

Most likely a divorcee. If not, she's trying desperately to "spice up" her marriage. Almost exclusively a product of the 2000s decade, found most commonly in the US and UK.

I kept trying to talk to that girl but this frankenmom kept moving in on me. Super creepy.