slot2 past tense and past participle slotted, present participle slotting [intransitive,transitive always + adverb/preposition]
slot something into something
Mary slotted a cassette into the VCR.
Each length of board slots easily into the next.
All the wood parts come pre-cut so that they can be slotted together (=put together using slots).
slot inphrasal verb
Stewart has slotted in well.
slot somebody/something ↔ in
We should be able to slot the meeting in before lunch.