The weight in bowls which makes them deviate from the straight line; hence any favourite idea or pursuit, or whatever predisposes the mind in a particular direction.
Bowls are not now loaded, but the bias depends on the shape of the bowls. They are flattened on one side, and therefore roll obliquely.
Your stomach makes your fabric roll, Just as the bias rules the bowl.
Prior: Alma, iii. line 1281
Biberius Caldius Mero The punning nickname of Tiberius Claudius Nero. Biberius [Tiberius], drink-loving, Caldius Mero [Claudius Nero], by metathesis for calidus mero, hot with wine.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894