Nut n' tuck, pronounced "nut and tuck", is the act to which the man during sexual intercourse nuts (cums) on his partners body and pulls his pants up quickly, tucking his nuts away.
To Nut'n'snug is the process of nutting with someone (having sexual activities) and then proceed to snuggle or cuddle afterwards. To some this is the final goal of their relationship. This word is mainly used by members of the LGBT continuity.