great googly moogly Share definition Flag Utterance of great surprise. Common in blues songs, made more popular by Frank Zappa in the song "Nanook Rubs It" from Apostrophe in 1974. This chrome plated megaphone is $40.00? Great Googly Moogly! great googly moogly by MasterOod March 2, 2005 Get the great googly moogly mug.