ramen hangover 

headache, dry mouth and other hangover-like symptoms which may occur as a result of the consumption of ramen noodles before bed

(Ramen hangover, caused by intake of too much MSG and/or sodium, may be prevented by drinking copious amounts of water as a supplement to pre-bedtime ramen.)

Randy complained to his roommate Kyung that although he had not had even one beer last night, his mouth was dry and his head hurt as if he had a hangover. Kyung just laughed and said, "Randy, is it really all such a blur? Last night before bed, you ate six packs of my Shin Ramyun Seafood flavor while watching Yu-Gi-Oh! cartoons. You, my friend, are suffering from ramen hangover."

ramen hangover by Elliott February 10, 2005