English learners are often puzzled by expressions like GONNA or WANNA that they often hear in movies or perhaps read in comic strips. If they look up these expressions in a dictionary, they may not find them, which increases the puzzlement even further

In fact, these expressions do exist and can be found in good (big) dictionaries. They are "informal contractions" or short forms of other words that people use when speaking casually. They are not exactly slang, but they are a little like slang

For example, GONNA is a short form of "going to". If you say "going to" very fast, without carefully pronouncing each word, it can sound like "gonna

Here are some of the most common informal contractions, with example sentences

     GIMME = give me     Gimme your money

 Don't gimme that rubbish     Can you gimme a hand

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