cram full vs chock-full

cram full and chock-full both are adjectives.

Word	Noun	Adjective	Verb	Adverb
cram full	No	Yes	No	No
chock-full	No	Yes	No	No

As adjectives, cram full and chock-full are synonyms defined as:

Other synonyms of cram full include chockablock, chockful, choke-full, chuck-full.

cram full (adjective)	chock-full (adjective)
packed full to capacity	packed full to capacity