A term used in Canada for people who play rugby. Specifically, it refers to the especially fat players who can't run and constantly fall in the mud (hence 'peat').
When someone tells you to repeat something you've never done before. Synonym of "learn", "find out about" or "do for the first time".
Your friend: You should repeat the definitions for the chemistrytest tomorrow.
You: I'm not re-peating if I've never heard any of that before. BRB I'm going to peat some more.
Peat is derived from the word "repeat". To repeat something is to experience it again, thus we can conclude that to "peat" something is to experience it usually for the first time or have something happen.