Write the lyrics to your funny holiday song by focusing on exaggeration or unexpected sides of the holiday. Exaggeration is a classic element of comedy and can expand on a well-known holiday premise beyond its logical limits; for instance, creating an overstatement about difficulty parking during holiday shopping. Alternately, you can get laughs by negating a common phrase as in, "'Tis the season ... to receive!"
Write a melody for your funny holiday song. Melody is the basis of all music, and you can create a melody by writing out the music notes, guitar tablature or even humming into a recording device. You can even use the occasional snippet of a classic holiday song in a ironic way as a break or interlude to add unexpected humor.
Support the melody of your song with chords. Whether your using a single instrument, like piano or guitar, or arranging the song with a band or using digital recording software, adding a few simple chords to your melody will give it depth and fullness. In humor songs, the focus is on the melody and lyrics, so a simple musical backing is best.
Record your holiday song on a computer or tape recorder. Setting up a microphone in a room and singing while you play guitar or piano is the most basic way to record a song, however free software allows users to record multiple tracks and layer recordings. You may also choose to record the song with a full band in a studio.
Share your holiday song by signing up for music sharing websites. Simply sign up with an account on a site and upload your music through the uploading protocol, generally found under "Add Songs" or "Manage Songs" on music sites. Share the direct link to your song provided by the music service with friends.