Gr16 is essentially gr8 (great) but used when something is too great for a simple 'gr8' to be used. It is double the power of a regular gr8, and when something is even gr8r than gr16, one can multiply the number by a multiple of eight. (example: gr32)
Jesus is so gr16.
by tchaikovsgay June 6, 2017
Get the gr16mug.