joint·worm 
(jointwûrm′)
(jointwûrm′)n.
A larva of any of various chalcid wasps of the family Eurytomidae, especially of Tetramesa tritici, that infests grains, causing swelling and subsequent breakage near the first joint of the stem.
- have one's heart in mouth
- have (one's) heart in (one's) mouth
- have one's heart in one's mouth
- have (one's) heart in the right place
- have one's heart in the right place
- have one's nose to the grindstone
- have one's wits about
- have one's wits about one
- have (or keep)(one's) wits about (one)
- have (or keep) (one's) wits about (one)
- have pity on
- haversack
- haversian canal
- haversian system
- have (someone) by the balls
- have someone by the balls
- have someone's number
- have (something) coming
- have something coming
- have/speak with a forked tongue
- have stardust in eyes
- have stardust in (one's) eyes
- have stardust in one's eyes
- have stars in eyes
- have stars in (one's) eyes