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1.
term for someone who is freakishly thin

comes from annorexic but does not mean annorexic
That girl is kinda rexi
by Ashley March 15, 2004
 
2.
Gout inducing, retched pairing of food, music, anything.
Bad matches that make no sense. If the combo makes you sick, it's rexis.
Peanut Butter and sardine sandwiches are rexis.
Pavarati signing rap is rexis.
by Lisa Scaradino April 12, 2006