trouser UK /ˈtɹaʊzə/US /ˈtɹaʊzɚ/verb 3noun 2forms 3 verb3 •(UK, informal) To put (money) into one's trouser pocket; to pocket. •(UK, informal) To secretively steal (an item or money) for personal use.Your aunt told him to pack Upjohn's bags, and the first thing he saw when he smacked into it was the speech. He trousered it and brought it along to me. — 1960 •(UK, informal) To take and keep (something, especially money, that is not one's own); to pocket.Politicians know how to look after themselves. Derry Irvine, Blair’s old boss, trousered a pension fund worth £2.3 million after just five years as Lord Chancellor - all courtesy of the tax payer. — 2010 noun2 •[before a noun] Of or relating to trousers. •A pair of trousers.And this is our linen trouser, sir. formstrousered · trousering · trousers