alley-oop
Concise Oxford English Dictionary © 2008 Oxford University Press:
alley-oop/aliˈuːp/
▶exclamation used to encourage or draw attention to an acrobatic feat. ▶noun (also alley-oop pass) Basketball a high pass caught by a leaping teammate who tries to dunk the ball before landing.
'alley-oop' also found in these Oxford entries:

