"Wujek"
While a priest in Kraków, groups of students regularly joined Wojtyła for hiking, skiing, bicycling, camping and kayaking, accompanied by prayer, outdoor Masses and theological discussions. In Stalinist-era Poland, it was not permitted for priests to travel with groups of students. Father Wojtyła asked his younger companions to call him “Wujek” (Polish for “Uncle”) to circumvent outsiders from deducing he was a priest. The nickname gained popularity among his followers. Later in 1958, when Wojtyła was on a kayaking trip, he was named an auxiliary bishop of Krakow. His acquaintances expressed concern that this would cause him to change. Wojtyła responded to his friends, "Wujek will remain Wujek," and he continued to live a simple life, shunning the trappings that came with his position as Bishop. This beloved nickname stayed with Wojtyła for his entire life and continues to be affectionately used, particularly by the Polish people.
Read more about this topic: Solidarity (Catholic Theology)