Something unspecified or indeterminate, or whose name is forgotten or immaterial.

especially, Philadelphus coronarius, widely cultivated / Philadelphus lewisii (Lewis' mock-orange), of western North America / Bursaria spinosa (Australian blackthorn)

(informal) Approximately; plus or minus some unknown amount. / (informal) Approximately; within a certain margin of error.

Modifications, limitations, or addenda; qualifications of any kind; speculations about whether a particular idea or enterprise is good.

plural of orca

The practice of keeping the mouth clean in order to prevent cavities (dental caries), gingivitis, periodontitis, bad breath (halitosis), and other dental disorders.

The practice of going house to house on Halloween evening to receive treats.

present participle of trick-or-treat

Either dead or alive. / Used to indicate someone is being sought for some kind of punishment or reprimand, and that (s)he may be killed in the process of finding, as if this was reasonable punishment.

(idiomatic) Regardless of the hardships.