it is a phrase created by CsL in conjunction with new year eve to remind people around to leave what is deemed past and create your own desired future path.
don't be sad, as what past is deemed to be past. So, "forget the past, walk the present, create future".
When you accidentally shit a little but catchthe shit nugget between your cheeks by squeezing your ass tight to hold it until a shitter can be reached.
Chet farted but accidentally shit instead and had to hold to duckwalk to bathroom to keep from letting the shit out.