I can see how that happened 

Something to say when you see a gorgeous woman pushing a baby stroller or carrying a child. It's considered a subtle way of pointing out a hottie in the vicinity.

Opposite of I can't see how that happened.

First example:
Guy #1: Look at that MILF over there!
Guy #2: I can see how that happened.

Second example:
Guy #1: Blah blah blah blah blah.
Guy #2: (nods in a direction) I can see how that happened.
Guy #1: Oh yeah, totally.

I can see how that happened by Roll Here Eggo July 10, 2009

I can't see how that happened

Something to say when you see a particularly unfortunate looking woman with children. It's considered a subtle way of pointing out a troll in the vicinity.

Opposite of I can see how that happened.

First example:
Guy #1: Oh my God, that woman hurts my eyes. How'd she get so many kids?
Guy #2: I can't see how that happened.

Second example:
Guy #1: Blah blah blah blah blah.
Guy #2: (nods in a direction) I can't see how that happened.
Guy #1: Thanks, I didn't look directly.

I can't see how that happened by Roll Here Eggo July 10, 2009