As nouns the difference between grandpa and peeps
is that grandpa is (informal) grandfather while peeps is .
peeps
English
Etymology 1
peep
Noun
(head)
Verb
(head)
(peep)
Etymology 2
Shortened from people, with simplified spelling, + -s to emphasize the plurality of the word
Noun
(
en-plural noun)
- Not many peeps here tonight, innit?
- Hey my peeps , how are you doing?