a run-on word is two words that are strung together as one word with one meaning. caleb has a lot of these. some examples:
feedyou: nursing... "mommy feedyou ali"
holdyou: pick up... "mommy holdyou caleb"
effway: this way... "please walk effway"
getchoo: get you... "bees no getchoo caleb"
mommycomy: come here mom... "mommycomy holdyou caleb please"
you get the idea :)