Does it mean "makes horses exhausted"?<br/><br/>Context:<br/><br/>buster <ul style="background-color:#f2f2f2;color:#434343;"><li>n.<ul><li>1.<br/>an informal form of address for a man<br style="color:#a0a0a0;"/>Hey buster, what's up?<br/><br/></li><li>2.<br/>a robust child<br/></li><li>3.<br/>a person who<span style="color:#ff0000;"> breaks horses</span><br/></li></ul></li></ul>