Maggot (noun)

1. The wormlike larva of a fly or other insect.
2. Something that is considered repulsive or undesirable.

Origin:

The word "maggot" originated in the late 14th century from the old english word "maggot", which means "the grub of a fly".

Examples:

1. The rotting fruit was infested with maggots.
2. The wound was crawling with maggots.
3. I don't want to hear any more of your maggoty ideas.
4. Maggots are a useful tool for forensic entomologists studying decomposition.
5. The spoiled meat was covered in maggots, rendering it inedible.