4 ms·actually yes, every month I pay my rent by mailing a check. Also, what is the acronym 'GP' ?by bigphishy 6y agoactually yes, every month I pay my rent by mailing a check. Also, what is the acronym 'GP' ?raindropm 6y agoGP = grand parent. The topmost parent comment we’ve reply (or refer)to.xapata 6y agoMailing a check is not mailing cash. I'm sure you're familiar with the differences.