# slip in

CEFR B2 · Phrasal verb

Source: https://englishreference.com/word/slip-in
Updated: 2026-10-23

## Definition

to include something quickly or secretly, often in a conversation or a piece of writing.

For teachers: to insert a comment, idea, or physical object into a sequence or space, typically in a subtle or unobtrusive manner. The verb functions transitively in this sense.

## Examples

- He managed to slip in a joke during his serious speech.
- I tried to slip in a mention of my promotion while we were discussing the new budget.
- The author skillfully managed to slip in several clues about the killer's identity without alerting the casual reader to the impending plot twist.

## Pitfalls

- Not "He slipped in it during the talk." but "He slipped it in during the talk." — when the object is a pronoun, it must be placed between the verb and the particle 'in'.

## Usage notes

- often used when the speaker wants to add something without making it the main focus of attention.
- Teaching tip: distinguish between the transitive sense (to insert something) and the intransitive sense (to enter a room quietly); this entry focuses on the transitive 'insertion' meaning.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.