\Adeeeeengappa(the more you drag 'e', the more surprised/impressed you are)\
Uttered when in surprise, highly impressed, shocked about something or somebody.
Venkatraman: See my son's photos taken at Manhattan.
Rajagopalan: Adengappa!! What tall buildings I say! When will Madras become like this?
Added 2011-09-27 by Ulsoor Kichcha