Did you mean cockup?
Examples
“How fitting that Archie should decide to cock up his toes in Arabella's bed.”
Tutoring Lady Jane
Lists
These user-created lists contain the word ‘cock up’.
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britishisms
A tip of my hat to the snarkiest of English dialects. Here here!
Ponce, snog, bloody, barmy, blasted, blooming, bleeding, knackered, poppycock, wanker, tosser, cracked and 52 more...
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Charlie Foxtrot
Military and work slang
lash up, fubar, cock up, burn the ships, cluster fuck, petta, lustre fluck, wong

sionnach screw up. The object of this verb is put between its two components (hence "to cock something up", not "to cock up something"). Oct 28, 2007