"Russian warship, go f**k yourself" was the last communication made on 24 February 2022 during the Russian attack on Snake Island in Ukraine's territorial waters by border guard Roman Hrybov to the Russian missile cruiser Moskva. The phrase, and derivatives of the phrase, became widely adopted during the 2022 Russian invasion of Ukraine in protests and demonstrations around the world. Weeks later, the phrase was commemorated on a postage stamp by Ukrposhta, the Ukrainian postal service.
The Ukrainian border guards were captured by the Russian Navy in the attack. During Hrybov's captivity, his family applied for a defensive trademark on the slogan. On his release, Hrybov was awarded a medal for his actions at the end of March.
On 13 April 2022, one day after the first issue of the commemorative stamp, the Moskva was critically damaged by an explosion caused by Ukrainian anti-ship missiles and sank the following day.