crawl up your own *** in embarrassment 
(ROOT (S (VP (VB crawl) (PRT (RP up)) (NP (PRP$ your) (JJ own) (NFP ***)) (PP (IN in) (NP (NN embarrassment))))))
(ROOT (S (VP (VB ) (PRT (RP )) (NP (PRP$ ) (JJ ) (NFP )) (PP (IN ) (NP (NN ))))))