fad wagon
To jump on the fad wagon is to be so low on self-respect you’d pay $50 for a cup of coffee that’s just beans and air.
I bought the ‘cinnamon roll’ trend and now I have a sugar addiction.
He got a subscription to a 100-flavor ice cream service because it looked cool.
My sister paid $100 for a ‘self-care weekend’ and cried for three hours.