past participle, past tense of Arm·strong (Verb)
Verb:
1.
Cripple (a team) by making a
feeble attempt in a clutch situation.
2. Provide an incredibly stupid effort or answer to something.
"That guy just Armstrung his team by saying Felix
Baumgartner reached a top speed of 165,000
km/h when in fact it was 1,
342 km/h!"