clod:
(plural: ‘clods‘; pronunciation: the letter ‘c’ is said with a ‘k’ sound as in “king” — for the right pronunciation of this word, please click here)
a dull, stupid person;
a fat, ugly or unattractive person,

a clod?
e.g.
Nelson is such a clod that when I told him that Iraq won the war against America, he believed it.
Look at that clod in those gaudy clothes … red shirt, brown trousers, green tie and blue socks!
When you stand aside and watch all our teachers gossiping, you certainly get an impression that they are a bunch of clods.

a clod of earth
The word ‘clod’ is more commonly used for a small mass or lump of soil or any other solid, e.g. a clod of earth, a clod of beef, etc., “Children kept bringing clods of clay and grandma kept making small shapes out of each clod.”
For an interesting comment on Al Gore, the former Vice-president of the USA, being a clod, please click here, a news article in which an unfortunate teacher is called a clod, please click here and for a political news article in which we see this word being used in the sense of a lump of mud, please click here.
