Πρόσθετες πληροφορίες:
Ο τύπος με τα δύο «gg» υπάρχει ήδη στον Σουίφτ. Τύπος χωρίς το «d» υπάρχει στον Walpole και τον De Quincey.
1784 H. Walpole Let. to H. S. Conway 25 June, I am very well content to be a Strulbrug, and to exist after I have done being.
1844 De Quincey Greece under Romans Wks. 1890 VII. 275 All the great Moslem nations being already in a Strulbrug state, and held erect only by the colossal support of Christian powers.
1778 H. Walpole Let. to W. Mason 15 May, I have long taken my doctor's degree in Strulbruggism, and wonder I concern myself about the affairs of the living.
(Από OED)