This term is born out of a practice known as "Gerbil Stuffing" where after
proper dilation of the anus (typically through
vigorous homosexual activity) one man inserts a cardboard tube
into another man's rectum. Once
is in place a gerbil (Meriones unguiculatus) is tucked
into the tube
and plunged deeper with broom
handle or an erect penis. The man carrying the gerbil is then a Gerbil Smuggler.