I only use it when referring to bi(sexual)weekly.
Does anybody else...?
The place for asking whether anybody else does the same stupid stuff like you do
People in my area of the English speaking world have the horrible habit of saying things like "let's meet at the bar back of 8" or "I'll call you back of 6". I have never got a satisfactory answer if this is "just before ópm" or "just past 6pm", or even "near the end of 6, so almost 7pm" Every person seems to interpret it differently, it's wild. And profoundly unhelpful.
The team I was on at work number of years ago had to hash this exact thing out because we had a "biweekly" status and was confusing people. We ultimately landed on not using the term.
Bimonthly and biannually have the same problem.
Yes, because I am a simpleton and Fortnightly and 'twice a week' already exists.
Get out of my head