cawst-co-gize Father-son duo on TikTok, under the alias @a.j.befumo. Known for their seemingly excessive obsession with Costco, partaking in social media trends at the same local Costco in every video. Coined the nickname due to their beaming passion for Costco.
Costco employee: Why the fuck is this grown man and his son dancing in the poultry aisle?! I see them every day!
Costco manager: Because they are the costco guys.