This is a commonly-used term to denote a 4x4 matrix occupied as 2x2 boxes
in the corners. Facing directions are irrelevant.
\syhBBBBs{b3s,b4s,g4s,g1s,.+.,.+.,.+.,.+.}
clumps
Traps
This is short for "trapezoids" and denotes a 2x8 matrix in which each
2x4 has the live people in a trapezoid. Facing directions are irrelevant.
\sxhBBBBs{b3s,.+.,.+.,g1s,.+.,g4s,b4s,.+.}
traps
1/4 Box
This is analogous to a 1/4 tag or 1/4 line. It is the "Heads Touch 1/4"
setup. A 3/4 box is the same thing with the oustides facing out as a couple.
Spindle or Sausage
These are names for the setup obtained by doing a 1/2 Circulate from columns.
Facing directions are irrelevant.
Bat or Rigger
These are names for the setup obtained by having the ends Hinge from columns.
Facing directions are irrelevant. It is the usual setup for the Rigger concept.
Space Invader
This is a call that does not involve any "breathing" or adjusting of one's
final position based on the formation. Everyone's motion is described in
absolute terms. The fundamental example of such a call is Press.
Breathing
This is the act of moving multiple resultant formations toward or away from
each other so that they will abut properly at the end of the call. While much has
been written about esoteric and theoretical aspects of this, it is really
very simple. It is the thing that Mainstream dancers know how to do after
a Spin the Top.
Inner Active, Outer Active
This is a designation used in this book, and occasionally in Challenge dancing at large,
to designate specific people in waves. The inner actives are the end of the wave
looking in and her partner. The outer actives are the end of the wave
looking out and her partner. These terms derive from a rather obscure and obsolete concept.