Suggestions for '5327'
small pie st matthew
leave out of account
teddy boy twin leechee
small new dual interne
black old go between
clean eos double reviser
carob bar tv newsman
small new double drinker
fresh low ex gambler
Most digits are obtained by counting the number of letters in the word.
Sometimes lateral thinking is required, such as 'nun', which sounds like 'none', as a suggestion for '0'.
Suggestions are random. If none are suitable, just try again.
The best memory aid is the one you remember.
Combine multiple suggestions into a single memorable one.