The definition of disordered eating involves bingeing followed by vomiting - a tack favoured by those suffering bulimia - taking diet pills or laxatives , skipping meals , eating very little and smoking to keep a lid on weight .
" Black drink , " brewed from the hollyilex vomitoriaby native americans on what is now the southeastern coast of the united states , had the lovely side effect of inducing vomiting and was a key part of a 16th-century religious purification ritual , according to european accounts .