The Collaborative International Dictionary
Acockbill
Acockbill \A*cock"bill`\, adv. [Prefix a- + cock + bill: with bills cocked up.] (Naut.)
Hanging at the cathead, ready to let go, as an anchor.
Topped up; having one yardarm higher than the other.
Wiktionary
acockbill
adv. 1 (context nautical English) Hanging at the cathead, ready to let go, as an anchor. 2 (context nautical English) Topped up; having one yardarm higher than the other.