bolt down vs belt down

bolt down and belt down both are verbs.

Word	Noun	Adjective	Verb	Adverb
bolt down	No	No	Yes	No
belt down	No	No	Yes	No

As verbs, bolt down and belt down are synonyms defined as:

Other synonyms of bolt down include down, drink down, kill, pop, pour down, toss off.

bolt down (verb)	belt down (verb)
eat a large amount of food quickly	drink down entirely
drink down entirely