Refers to merchandise that you pick up for someone else while shopping for your own items, either because this other person is unable to travel to the store himself, or because he is not a paid member of the big-box outfit where his desired items are offered, and so he has asked you as a member to obtain the items for him at the warehouse's bulk-package discount.
I don't buy enough household consumables to justify the $89-per-year membership-fee that Sam's Club charges, so I just piggyback-purchase them through the large family down the street.
Refers to what you request when you hurry over to a neighboringproperty where someone with a plow-equipped 4X4 is clearing out the homeowner's driveway; you schuper-schweetly ask if he would please come by afterwards and plow you out, too, since he's in your area, anyway.
Requesting piggyback-plowing is often a great way to save big bucks on winter snow-removal, as opposed to having someone actually make a special trip to drive several miles to your house to plow you out; if da task involves just maybe one to three "sweeps", da truck-driver may even do it for free.
A person who joins in the latest trend of anti establishment demonstrations, to show the world how “woke” they are. Can usually be found posting their outrage on social media straight after the mass media reports an indiscretion. Stating how they have supported this cause all their lives. Before quickly moving onto the next headline and abandoning the previous cause and even contradicted themselves.