The phrase 'stick up' implies a serious crime and is often used in news reports or crime dramas. Did you hear about the stick up at the gas station last night?
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Historical Saying
'Stick up' originated in old Western movies, where bandits would rob people or trains. They played cops and robbers, shouting 'This is a stick up!' just like in old movies.
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Forceful Connotation
Using 'stick up' can imply force or threat, especially with a weapon involved. The thieves were arrested for attempting to stick up several stores.