Hi<br/><br/>I am not sure when and how to use this idiom.<br/><br/><font color="#0000ff">I am sick of everyone's using my toothpaste.</font><br/><br/><font color="#0000ff">I will go and <i><b>have dibs on</b></i> it.</font><br/><br/>Is it a proper usage?<br/><br/>thanks