To make fuzzy or indistinct with drink. To fossle, vossle, to entangle, to confute business. [From] Low German fusslig, just tipsy enough to speak indistinctly.--Hensleigh Wedgwood's Dictionary of English Etymology, 1878
[Allied with] German faseln, to rave, dote.--Charles Küttner's German-English Dictionary, 1805
Originating in 1810 as a horse race to honor the marriage of Bavaria's eccentric Prince Ludwig, Oktoberfest has over the years become a protracted celebration of the brewer's art, currently occupying sixteen days and nights in early October. The memory of the original event has been linguistically preserved, with those departing for the festivities in Munich sometimes saying they are going "to the meadow," meaning the site of the horse race. Albert Hyamson's Dictionary of English Phrases (1922) noted another provincial drinking expression, "to come home by the villages," which meant to be drunk. "If, on the other hand, one comes home by the fields, one has no opportunity for drinking."
So when furries go around fuzzling one another, they little know what they're doing! I wonder if it's related to "wassail."