words: hybrid theory (#6404)

The animal, not the car kind.

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>

words/tails.txt

@@ -340,3 +340,27 @@ saola
 anoa
 banteng
 beefalo
+yakalo
+yattle
+tigon
+jaglion
+leopon
+savannah
+toyger
+cheetoh
+grolar
+zebroid
+coywolf
+wholphin
+narluga
+cama
+dzo
+zubron
+geep
+hinny
+mulard
+zeedonk
+zorse
+pumapard
+pizzly
+coydog