mack dibs - you claim a girl like she's the last slice of pizza and tell

you claim a girl like she's the last slice of pizza and tell your whole squad you're taking her first.

I mack dibs on Taylor. She's mine before anyone else even looks at her.

Bro, I just macked dibs on that girl. You ain't getting her.

Mack dibs on the new girl. She's my backup plan if my crush dumps me.