잡수다 is an honorific word of 먹다 먹어 봐 < 먹(다) + 어 + 보(다) + 아 잡숴 봐 < 잡수(다) + 어 + 보(다) + 아 Both mean "try to eat" 잡숴 봐 is mixture of formalities 잡숴 is formal and 봐 is informal Here are some variations with formality 먹어 봐 - informal 먹어 봐요 - a little formal 먹어 보세요. - a little formal l (not recommended) 잡숴 봐 - a little formal (not recommended) 잡숴 봐요 - a little formal 잡숴 보세요. - formal 잡숴 보십시요. - very formal