What I think he wants is so that the rendered control might be 50px but when he clicks on the arrow to show the list of the DDL, the list itself might be 100px.
In any event, if you set the width of the DDL to 50px the list that pops up will also only be 50px. There might be some CSS magic that you can do so that the dropdown control and the list itself are displayed with different width's, but I doubt it.
From a useability standpoint this is a horrible idea because if you select, say, "Enjoy every moment of the life" from your list, your ddl will only display "Enjoy every mome" as the selected item. This can become confusing.
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