Aquatic animals start a movement
But do not even move an inch
They say it is a word split into three
But we ducks do not see
The entire word, they say,
Is an unfriendly prig
I did not believe a word they said
Until they offered some bread
Help me get the bread!
Hint 1:
The description of the phrase of the three words only takes up the first line. Try to substitute the words for others and join them to get the full word. Also, not many words fit line 6 that have three words in them.
Hint 2:
It is 11 letters long.
Hint 3:
The first word inside is 5 letters long, the second 2, and the last 4.