Loitering, hanging out, or strolling with friends, waiting for something good to happen.
From the word “wander”
C: I was going to wangerin the mall with Emily
H: Sounds good!
B: Man, we need to make better plans.
C: What’s wrong?
B: We always end up wangerin to no end.
Derived from combining “wandering” and “grinning” by replacing the D in wandering with a G.