Snap The Tag
From parallel lines, two faced lines or waves: Tag with adjacent dancer, then those facing out turn back and follow the centers as in the second half of a Tag the Line (1/4, 1/2 or 3/4 if indicated). (Lee Kopman 1974)
Snap And Tag - suggested by Bill Davis, Menlo Park, Cal. 1974
From parallel lines, two faced lines or waves: Same as Snap The Tag except all do a Partner or Single Hinge then those facing out Fold to follow the leaders as in Tag the Line.
COMMENT: These are exact equivalents in their end result. The term "Snap" generally means Tag rather than Hinge.