(of a screwed connection) tightened using the fingers, and no tools, to a torque of about 15 to 20 inlb or 1.7 to 2.3 Nm

Strongly pulled together, tightly knit.

Alternative form of tighthead

Tightly controlled; not given the freedom to do as one pleases.

Alternative form of airtight

To hold onto something securely or closely. / To remain patient, until a specified event occurs.

(rugby) The five forwards who form the front row and the second row in the scrum. / (comedy) A five-minute set of jokes performed by a stand-up comedian, usually made up of only their best material.

Alternative spelling of skintight

As tightly screwed as can be achieved by the strength of one's fingers, without the use of any other tools.

(informal, chiefly imperative) To wait, without attempting to address a challenging, alarming, or dangerous situation, until a later point in time. / To grasp tightly.