The guy who allegedly pulled the ol' 5-knuckle shuffle into his female co-worker's water bottle -- which she then unknowingly DRANK -- just pled not guilty to a handful of charges during his arraignment in Orange County.


As we previously reported, 31-year-old Michael Lallana has been charged with six misdemeanors, including two counts of releasing an offensive material in a public place and assault.

After the hearing, Gloria Allred said the alleged

victim/client was "horrified, disgusted and emotionally traumatized".