ridden up is ride up's Past Participle

ride up

US 
UK 
  • na.缩上去；(衣领)露出(衣外)；(领带)松开；走样
Simple Present：rides up  Present Participle：riding up  Past Tense：rode up  Past Participle：ridden up  

E-C

E-E

na.
1.
(身上的衣服等)向上拱,缩上去;(衣领)露出(衣外);(领带)松开;走样

Sample Sentence