Engaged in a quarrel or dispute, as in
The two families were always at loggerheads, making it difficult to celebrate holidays together . This term may have come from some earlier meaning of
loggerhead, referring either to a blockhead or stupid person, or to a long-handled iron poker with a bulb-shaped end that was heated in the fire and used to melt pitch. If it was the latter, it may have been alluded to as a weapon. [Late 1600s] For a synonym, see
at odds.