Stumble

[Couch Potatoe]

To trip in walking or in moving in any way with the
legs; to strike the foot so as to fall, or to endanger a fall; to
stagger because of a false step.

[Merna]

walk unsteadily;
miss a step and fall or nearly fall;
lurch: an unsteady uneven gait
encounter by chance
make an error;
trip: an unintentional but embarrassing blunder

[Zipporah Schumaker]

To walk in a drunken fashion, or to use the toolbar found at stumbleupon.com .. and the word found in definition #1 should read waste.

[Gregory]

The art of fucking something up so bad, it is beyond repair, or physical reconisation

[Gregory]

A toolbar, a random search tool and an eclectic community. Yet another way the evil internet waists my time.

[Monty]

A random online search tool that only fags use.