Inserting an object, either a drug or otherwise into ones rectum for a desired effect.
Shelving is generally
done with pills for its
high absorption rate, but causes serve anal irritation and can lead to further problems such as shitting
bricks if a hallucinogen is taken.
Oi Kev,
go shelve a
cat would ya.
Mate, I just shelved some acid, I feel
like a elephant cock is stuck up there.