singsong

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Verse characterized by mechanical regularity of rhythm and rhyme.
• noun A tediously repetitive rising and falling inflection of the voice.
• adjective Tediously repetitive in vocal inflection or rhythm.

from The Century Dictionary.

• Making songs, rimes, or inferior poetry.
• Monotonously rhythmical in cadence and time; chanting.
• noun Verse intended or suitable for singing; a ballad; hence, bad verse; mere rime rather than poetry.
• noun A monotonous rhythmical cadence, sound, or tone; a wearying uniformity in the rising and falling inflections of the voice, especially in speaking.
• noun A convivial meeting, at which every person is expected to contribute a song.
• To make songs or verses; also, to make singsong sounds; utter a monotonous chant.
• To express or utter in singsong.

from the GNU version of the Collaborative International Dictionary of English.

• noun Bad singing or poetry.
• noun A drawling or monotonous tone, as of a badly executed song.
• adjective Drawling; monotonous; having a monotonous cadence.
• intransitive verb rare To write poor poetry.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Like a piece of singsong; simple and melodic, varying in pitch (of tone of voice etc.)
• noun A piece of verse with a simple, song-like rhythm.
• noun An informal gathering at which songs are sung; a singing session.
• verb To utter in a singsong voice.
• verb obsolete To write poor poetry.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a regular and monotonous rising and falling intonation
• noun informal group singing of popular songs
• verb move as if accompanied by a singsong
• adjective uttered in a monotonous cadence or rhythm as in chanting
• verb speak, chant, or declaim in a singsong