I heard it first at some training I went to last week in Jersey....... The trainer asked if anyone needed to take a bio-break before we started the next segments etc... I thought he said "bowel" break, and asked "Did you just say bio or bowel break??? The whole class laughed I have heard it in several instances now. "We will take a 15 minute bio break.." WTF! Used to be, you just got up and went....