From WordNet (r) 2.0 (August 2003) [wn]:
high-five
n : a gesture of greeting or elation; one person's upraised palm
slaps the upraised palm of another person
From WordNet (r) 2.0 (August 2003) [wn]:
high-five
n : a gesture of greeting or elation; one person's upraised palm
slaps the upraised palm of another person