noun
convenience store regular; convenienist
Slang term for a person who frequently visits or relies on convenience stores, often for meals or daily needs.
wasei-eigo (Japanese-coined English), from convenienist
彼は毎日コンビニで昼ごはんを買う、まさにコンビニストだ。
He buys lunch at a convenience store every day—a true convenienist.