grimthorpe verb1 •(old-fashioned) To renovate an old building or structure in a lavish and expensive, yet tasteless fashion which spoils its original beauty."Look, just because this junky train has been grimthorped doesn't mean that I have to sit and listen to you two psychopaths read through the encyclopedia of death," Natalia scolded. — 2010 formsGrimthorped · grimthorped · Grimthorping · grimthorping · Grimthorpes · grimthorpes