Verb
Neville Longbottom (third-person singular simple present Neville Longbottoms, present participle Neville Longbottoming, simple past and past participle Neville Longbottomed)
(Internet slang) To unexpectedly become significantly more attractive after going through puberty.
This set has 253 pieces and includes minifigures for Harry Potter, Hermione Granger, Ron Weasley, Dolores Umbridge, Slughorn, Lavender Brown, Draco Malfoy, Neville Longbottom, and Luna Lovegood minifigures. Source: Internet