What does double back mean?

[Presco]

I keep hearing about it but I dont know what it means

[Probably afk tbh]

In what context, my guess is they are talking about moonwalking ie walking backwards so your red stain isn't pointed where you are going.

[Mr. Jericho]

Killer chasing you around a loop, survivor goes 1 way, killer goes the other. Survivor then "doubles back" the original way.

[Pockets]

double back:
to return to the place where you started from, usually faster then getting to where you are now. (urban dictionary)

[GRIWA]

Ни че не понятно