Top definition
Military Acrnoym for "Suck It The Fuck Up, Drive On"
Joe 1: Man I only got like three hours of sleep last night and was last in line for chow

Joe 2: Man, you need to SITFUDO.
by SLCC74 July 27, 2011
Get the mug
Get a SITFUDO mug for your father-in-law Abdul.