teen jeans mom 

Moms who think there young, wannabe teenagers.
Moms that are turning into "consumer doppelgangers" of their children, shopping in teen stores so as to mimic the identities of their teenage children.

"Mom, you are not shopping at Hollister!" Amber says to her mother. "Moms don't shop at Hollister. You are too old for this store. OMG, I can't believe you are buying something here, you're such a teen jeans mom."
Lady to another lady - "That lady over there looks just like her daughter" Other lady - "She must be one of those teen jeans mom's" -

teen jeans mom by Alone Art September 14, 2013