It's a word chain where each word links to the next eg 'gold' + 'fish'+ 'eye' + 'shadow' + 'boxing'... etc etc (but it's much more devious than my example - there are lots of possible connections).
Put 'key' in front of your first one ('board' is the end of the chain, of course, and you need a couple more after 'finger' before you get to that word).