a pill taken to both relax the body and help the common problem of constipation. similar to the 'chill pill' just with the added benefit similar to that of a laxitive. side-effects of the chillaxitive include; diarreah, neusea, constipation, swelling of the genitals, and pubic lice.
timmy: "omg omg omg omg i havnt taken a crap in 4 days!!!!!"
jimmy: "jeez timmy, take a chillaxitive"