fill up

verb

To make (something) completely full.
To fill the tank of a vehicle with fuel.
“It costs a fortune these days to fill up.”
“"Game over," Waddicor warns. "Look at the fuel gauge. Someone's forgotten to fill up." The heavily laden train has come from Freightliner's Maritime Terminal in Southampton's western docks. Waddicor reckons there might not be enough diesel in the tank to complete the journey.”
To become completely full.
To become tearful as a result of strong emotion.
To annoy, or displease, by taunting, or by excessive nagging.
“The teachers that taught me weren't cool. / You're holding me down, / Turning me 'round, / Filling me up with your rules.”
To satisfy the hunger of (someone).
“Thanks for the chocolate cake – it really filled me up!”
To satisfy one's hunger; to stop being hungry.
“We've scoured these science and tapped the top experts to help you learn how to do just that. Use these seven simple strategies, and you'll fill up without filling out.”
To make a full house on the turn or the river.
To fill in / fill out a form etc.
To make complete, to bring to a full development.
“Our Father’s Death Would fill up all the Guilt of Civil War, And cloſe the Scene of Blood.”