Mother-In-Law's secret stash of pleasure toys. Typically this is in a nightstand drawer where is it easy to reach on short notice. Examples of items typically found include vibrators, anal beads, nipple clamps, etc. The goodies could also include items for more than solo-action such as ball gags, ropes, floggers, and paddles.
Last night I thing that my live in Mother-in-Law used up everything in her MiL goodie drawer. There were "happy noises" from her room all night!
The patch of hair that generally trails down a mans abdomen...trailing downward leading you to "the goodies".
Hence - Goodie Trail
The definition is fairly self explanitory... however... take a look at some examples of goody trails on the internet if you need a visual... just use a few key words, and viola!