This could be the after affect of:
-a rough night
-drinking with friends
-passing out in a grocery store
just plain stupidity.
Could be used as a comparison.
Pimples and Cheese also make a good random rhyme.
Good to use when stuck in a rap battle... for example:
Pimples and Cheese, Pimple's and Cheese, yo what you know about Pimples anc Cheese.
comparison - "Yo man, it smells like pimples and cheese"