[Loranubi]

non native speaker here: how does h"ot" and c"old" rhyme? it's a different 'o' sound and d/t is not exactly similar also.

[happytoexplain]

To add to the other replies, here's the English page for rhyming schemes, which calls this pattern "XAXA".

https://en.m.wikipedia.org/wiki/Rhyme_scheme

A more notable version of the same idea, which includes more unrhymed lines, is double dactyl (XXXA XXXA). Though this is more for poetry/limerick, and not for mnemonics.

[habinero]

No worries, you're correct, those lines don't rhyme.

It's pretty common for English poetry and songs to only rhyme every other line

[steanne]

they don't. in both cases, only every other line is rhyming. hot and not, ice and nice.