немедленно(tout suite is a French expression that means "right away" or "immediately". It is used to tell someone to do something without delay or to hurry up. For example, you can say "I need you to get me that report tout suite" or "Please finish your homework tout suite".
The spelling of this expression can vary depending on the language and the pronunciation. The official French spelling is tout de suite, but Americans usually drop the de and say tout suite. Some people also spell it as toot sweet or tout sweet, but these are not correct. The phrase was popularized by American soldiers who learned it from French speakers during World War I Taras)