look up any word, like the eiffel tower:
 
1.
"Oh Fuck, It's Monday Again." (or "Oh Fuck, It's Monday Already.")

The counterpoint to TGIF.

Variants: GDIMA, OSIMA, etc.
Ted had a sign in his cubicle. One side said "TGIF", the other side said "OFIMA".
by smendler March 17, 2013