The word "flanigan" is spelled with the IPA phonetic transcription /ˈflænɪɡən/. The first syllable "fla" is pronounced with a short "a" sound as in "cat." The second syllable "ni" is pronounced with a short "i" sound as in "bit." The third syllable "gan" is pronounced with a soft "g" sound as in "giraffe" and a short "a" sound. This unique spelling of "flanigan" can be confusing for some, but the proper pronunciation using the IPA transcription can help ensure clarity in communication.
The word Flanigan is a surname of Irish origin. It is derived from the Gaelic name Ó Flannagáin or Ó Flannagáin which means descendant of Flannagán. The personal name Flannagán itself comes from the Irish word flann, meaning red or ruddy. Therefore, Flanigan could be interpreted as meaning descendant of the red-haired one or descendant of the ruddy one.