fully flegged expressions

[cacian]

are there many?any?

I am looking for expressions that do exactly what they say on the tin. :)

An example of what I mean:

''a wheeler dealer'' is someone who wheels in goods by means of a wheel ie a car or a cart to load in the goods and then deals in them. To deal as in the get a bargain.

''to put a lid on something'' may just about fully fledge but then a lid is not always needed to finish something.

But then the expression:

''whistle blower'' is someone who ''grasses on someone' else . Iit is not fully flegged because the words do not describe the action. ie there is no whistle to be blown but only whispering telling on someone's back. ''To stab someone back'' or ''to go behind someone's back'' and ''kiss and tell'' come to mind. They are not entirely fully flegged apart from maybe ''the kiss and tell''

These metaphorical and therefore serve a visual purpose rather then a tongue and cheek one. Or is it both? I am do not know.
What is the reason to speak in metaphorics in day to day speech?

[cafolini]

Metaphors usually occur in more primitive language because there is a lack of specific words for what the person wants to express. Thus English is becoming less and less matephoric as new words are easily brought into dictionaries. But Spanish, for example, became very metaphoric because it took ages for the Royal Academy of Madrid to approve and register new words.

[cacian]

cafolini thank you for the insightful post. I never knew that the registering of new words was a duty stamp of approval.
I wonder what the approval is about and most importantly how one goes about deciding. I can't imagine the amounts of words lost because of this heavy taxing phenomena. Incredible indeed!! It is very limiting indeed and something that never occurred to me.