The correct form is "suck it" (with hyphen). Here is more information about these two variants:
Suck (with a hyphen) is the correct form and is used in Romanian in the context of an expression that involves an act of sucking or in context sexual. It is an imperative that is addressed to someone to urge them to perform this action. It is important Please note that this expression is vulgar and impolite and should be avoided in all situations. communication formal or in respectful conversations.
Sugeo (without hyphen) is not a correct form in Romanian and does not make sense in this context. Adding the hyphen "-" between "suge" and "o" is necessary to obtain the correct form "suge-o."
In conclusion, the correct form is "suck it", with a hyphen, which is used in the context of a vulgar and impolite expression involving an act of sucking or in a sexual context, while "suck" without a hyphen is not correct and does not make sense in standard Romanian.