Tap up his bier

• top up his beer: fill his glass of beer up to the top

• tap up his beer: get him a beer from the tap

• take up his bier: lift up his coffin

• tap: a peg or stopper on a cask → "to tap up" = "to close or secure with a stopper"

• bier: (Dutch) beer

• Bier: (German) beer