What cognitive mechanisms explain why saying random words sometimes helps recall a specific word that feels stuck on the

Spreading activation: turning up the volume on the target word

A tip-of-the-tongue (TOT) state often happens when activation in your brain’s word network is nearly strong enough to retrieve the word but not quite there. Random words can work like extra cues that spread activation through related concepts, giving the target word the final push it needs to cross the retrieval threshold. [1] [2] [7] Some researchers argue that TOTs are moments of weak activation rather than a complete block, so any additional activation—say from a chance word you blurt out—can tip the balance. [5]

Transmission deficit: repairing the link between meaning and sound

Another prominent idea is that during a TOT the semantic (meaning) part of the word memory lights up, but the signal fails to reach the phonological (sound) part properly. [3] Random words that happen to share sounds—especially the first syllable—can strengthen those weak connections. [9] [10] When you’re stuck on a word, you can often recall its first letter or words that sound similar; spouting random words increases the odds that you’ll hit on one that shares those features. [4] Sound-related cues also tend to be more effective than meaning cues for jogging a stuck word. [6] Providing first-syllable primes, for example, significantly increases TOT resolution, whereas seeing just the first letter does not. [8]

Blocking hypothesis: chasing away the intruder

Sometimes another word keeps barging in, blocking access to the one you want. [13] In principle, saying random words could disrupt that intruder and clear the path. However, studies suggest that when people actively try to break a TOT, they usually search for meaning rather than sounds, and they rarely use phonological strategies. [11] [12] So while blocking might play a role, the random‑word trick is not the typical go‑to approach—unless you stumble onto a word that dislodges the blocker accidentally.

Auditory feedback: your own voice as a recall cue

Simply speaking any word produces auditory input that can serve as a memory cue. [14] The sound of your own voice might stimulate retrieval networks even when the random word you said isn’t obviously related to the target.

Neural disinhibition: a momentary release of the memory

At the brain level, recalling a memory involves a disinhibitory mechanism in the hippocampus that temporarily frees the memory from inhibitory control. [15] While the evidence doesn’t directly study TOTs, it’s possible that generating spontaneous speech triggers a similar release, helping the stuck word surface.

Putting it all together

Saying random words can help through several routes at once—ramping up activation, repairing weak sound links, and perhaps even clearing out mental competition. The strongest and most direct evidence points to phonological similarity as the key: the more the random word sounds like the target, the better your chances.