Wordnet 3.0
ADJECTIVE (1)
1. 
 marked by casual disrespect; 
- Example: "a flip answer to serious question"- Example: "the student was kept in for impudent behavior"[syn: impudent, insolent, snotty-nosed, flip]
WordNet (r) 3.0 (2006):
snotty-nosed
    adj 1: marked by casual disrespect; "a flip answer to serious
           question"; "the student was kept in for impudent
           behavior" [syn: impudent, insolent, snotty-nosed,
           flip]