Attaboy is a 7 letter English word. It's valid Words with friends word worth 12 points.
You can make 70 anagrams from letters in attaboy (aabotty).
1905-10, Americanism; alleged to be a reduced form of that's a boy or that's the boy
It will be observed that Mr. Burke has given his attaboy a "t" too many.
He did go and support the team, and enhance the glory of Zenith, by yelling "attaboy!"
In the ominous silence a cracked voice yelped: "attaboy Fenton!"
He was censured by his colleagues in the House but given an “attaboy, Charlie!”