How do we give a "high five" in
Hebrew?
Modern Israeli Hebrew uses the word
"keef" 
to refer to "high five". 
You can easily detect the connection to the
word "kaf", 
that means a "a palm".
When asking someone for a high five in
Hebrew, 
you should say "ten lee keef" (to
a man) 
or "tnee lee keef" (to a woman).
What's "high five" in your
language?