立て込む

たてこむtatekomu

godan verb · intransitive

1. to be crowded
2. to be packed
3. to be busy
4. to be piled up (of work)
5. to be busy (with many things)
6. to be packed (of one's schedule)
7. to have a lot of work to do
8. to have one's hands full

Study it in Yanamino