one-a-day

A beneficial defecation regimen.

It never fails, when I travel my vitamin (one-a-day) routine is impeded.

Day ones

People that say they have day ones everywhere are using the term wrong. Day ones are people that have been best friends since either birth or for several years. PERIODT!!

Man 1: dude I everyone is my day one.!
Man 2: nah, day ones are like Olivia and Isabella, they’ve been best friends since kindergarten. So fix ur self!
Man 1: ........

Day one

Your ride or die bestie, someone who is down to ride and by your side 24/7. Doesn't ask for anything but your loyalty, but would give you everything they have.

Justin is my day one!

Day ones

People you role with since you were young aka day ones.

“Yo I run dis block wit all my day ones,