TBV
Top, bottom, or versatile
Used between gay men when determining the positions one typically assumes during intercourse.
"So, are you TBV?"
"So, are you TBV?"
TBV
To be verified. Denotes that part of a more general explanation needs to be verified. Often used between parentheses.
This physical effect creates a current (or a voltage? TBV) that would heat up the sample above the critical temperature.