Green Beret Nap Time. Time during the work day used to recover from the previous night. Previous night's activities usually include excessive drinking and sexual contact with multiple women at late hours due to the rock star status of being a Green Beret, thus requiring GBNT the next day.
Only authorized for use by US Army Special Forces.
And dying in yo' bed many years from now, would ya be willing ta trade all da days from dis here day ta dat fo' one chance, just one chance, ta come back here as young men an' tell our enemies dat dey may take our lives but dey will never take our freedom ... YUB NUB!