cream-crackered
Utterly worn out
Cream-crackered is British slang for exhausted, rhyming slang derived from "knackered." The phrase substitutes the rhyming words for the target word, following the pattern of Cockney rhyming slang: I'm absolutely cream-crackered after that shift.
Sometimes shortened to just "cream-crackered" or even "creamed."
drained
Emptied of resources
sapped · enervated · prostrate · overworked · debilitated · enfeebled · flagging · listless · lethargic · frazzled
knackered
British for exhausted
bushed · whacked · shagged · done in · jiggered · clapped out · dead beat · all in · done for · had it
cream-crackeredenergetic
Having much vigor
full of beans · energised · lively · vigorous · sprightly
cream-crackeredwide awake
Totally alert and attentive
alert · bright-eyed · bright-eyed and bushy-tailed · sharp · on the ball
cream, cracker, creams, creamed, creaming, creamy, creamier, creamiest, creaminess