We've found 5 phrases for at sea (0.147 seconds):

ask my arse »    A common reply to any question; still deemed wit at sea, and formerly at court, under the denomination of selling bargains.

at sea »    Confused, lost, or adrift; bewildered.

at sea »    On the ocean or sea, typically of a ship or person aboard a ship.

cross the line »    To cross the equator, as a vessel at sea.

victory at sea »    Ocean conditions very windblown and messy, possibly to the point of being inimical to surfing and other water sports.

New:  We also know Zip Codes FYI!