Autem dipper - Idioms by The Free Dictionary
obsolete One belonging to the Anabaptist faith, in which believers are baptized after infancy. "Autem" is an obsolete slang word for church, so an "autem dipper" is one whose faith is based on baptism (that is, a "dip" in water). As one has no concept of faith as an infant, the autem dippers believe that baptism should take place when one is old enough to affirm belief in the church.
References in periodicals archive
Nor the cognate Autem Quaver--Autem (church) features in several such diversely targeted compounds' Autem Bawler (parson): Autem Cacklers and Prickears (Dissenters of every denomination); Autem Cackle Tub (a conventicle or meeting-house for Dissenters); Autem Dippers
(pickpockets who practise in churches; also churchwardens aim overseers of the poor).